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Laws of Motion — NEET UG Physics PYQs

332 previous year questions from Laws of Motion with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

332 questionsPhysicsSolutions on every page
1

The magnitude and direction of the acceleration produced in a body of mass 5 kg when two mutually perpendicular forces 8 N and 6 N act on it, are respectively :

NEET 2026 Solution View → 2

A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of static friction between the box and the trolley is 0.12 . Keeping the box in stationary state o

NEET 2026 Solution View → 3

A car travels on a circular racetrack of radius 50 m, which is banked at an angle . If the car travels at a speed 10 ms ⁻¹ , then the wear and tear on its tyres is minimum. Taking

NEET 2026 Solution View → 4

There are two inclined surface of equal length (L) and same angle of inclination 45^ with the horizontal. One of them is rough and the other is perfectly smooth. A given body takes

NEET 2025 Solution View → 5

A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of 60^ with it. The other end rests on a rough horizontal floor. The friction force

NEET 2025 Solution View → 6

A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30^ with the horizontal. The tension in the cord is 30 N . The acceleration of the box is (Take g=

NEET 2024 Solution View → 7

A bob is whirled in a horizontal circle by means of a string at an initial speed of 10 rpm. If the tension in the string is quadrupled while keeping the radius constant, the new sp

NEET 2024 Solution View → 8

A horizontal force 10 N is applied to a block A as shown in figure. The mass of blocks A and B are 2 kg and 3 kg respectively. The blocks slide over a frictionless surface. The for

NEET 2024 Solution View → 9

A block of mass 2 ~kg is placed on an inclined rough surface AC (as shown in figure) of coefficient of friction . If g=10 ~ms ⁻² , the net force (in N ) on the block will be

NEET 2023 Solution View → 10

The angular acceleration of a body, moving along the circumference of a circle, is:

NEET 2023 Solution View → 11

Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floo

NEET 2023 Solution View → 12

In the diagram shown, the normal reaction force between 2 ~kg and 1 ~kg is (Given g=10 ~ms ⁻² ) (Consider the surface, to be smooth):

NEET 2022 Solution View → 13

The restoring force of a spring with a block attached to the free end of the spring is represented by:

NEET 2022 Solution View → 14

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200   rpm to 3120   rpm in 16 seconds. The angular acceleration in rad   s -

NEET 2022 Solution View → 15

A point mass m is moved in a vertical circle of the radius r with the help of a string. The velocity of the mass is 7 g r at the lowest point. The tension in the string at the lowe

NEET 2020 Solution View → 16

Calculate the acceleration of the block and trolly system shown in the figure. The coefficient of kinetic friction between the trolly and the surface is 0 . 05 . ( g = 10   m

NEET 2020 Solution View → 17

Two bodies of mass 4   kg and 6   kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of th

NEET 2020 Solution View → 18

Block A of mass 2 ~kg is placed over block B of mass 8 ~kg . The combination is placed over a rough horizontal surface. Coefficient of friction between B and the floor is 0.5 . Coe

AIIMS 2019 Solution View → 19

Assertion : Frictional forces are conservative forces. Reason : Potential energy can be associated with frictional forces.

AIIMS 2019 Solution View → 20

Assertion : When a cyclist doubles his speed of turning, the chance of his skidding becomes nearly four times. Reason: When the speed of the vehicle increases, the angle of bending

AIIMS 2019 Solution View → 21

Assertion : Sometimes insects can walk on water. Reason : The gravitational force on insect is balanced by force due to surface tension.

AIIMS 2019 Solution View → 22

Assertion : A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table. Reason : For every action there is an equa

AIIMS 2019 Solution View → 23

Assertion : A rocket moves forward by pushing the surrounding air backwards. Reason : It derives the necessary thrust to move forward according to Newton's third la

AIIMS 2019 Solution View → 24

The rate of decrease of kinetic energy is 9.6 J/s. Find the magnitude of force acting on particle when it's speed is 3 ~m / s .

JIPMER 2019 Solution View → 25

A body of mass m is kept on a rough horizontal surface (coefficient of friction = ). Horizontal force is applied on the body, but it does not move. The resultant of normal reaction

NEET 2019 Solution View → 26

A block of mass 10   k g is in contact against the inner wall of a hollow cylindrical drum of radius   1   m . The coefficient of friction between the block and the

NEET 2019 Solution View → 27

A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break, when

NEET 2019 Solution View → 28

Assertion: On a banked curved track, vertical component of normal reaction provides the necessary centripetal force. Reason : Centripetal force is not always required for turning.

AIIMS 2018 Solution View → 29

In the diagram 100 ~kg block is hanging from a pulley and force F is applied on the string to keep the system in equilibrium. If the whole system is moving up with a constant veloc

AIIMS 2018 Solution View → 30

The rear side of a truck is open and a box of mass 20 ~kg is placed on the truck 4 ~m away from the open end. If is 0.15 and g is 10 ~m ~s ⁻² and the truck starts from rest with an

AIIMS 2018 Solution View → 31

A cart has mass 2 metric tone and sand of 1 metric tone is inside the cart. Now a force of 10 ~N is applied on cart and sand starts to leak with rate of 0.5 ~kg / s . What is the v

AIIMS 2018 Solution View → 32

A force of 10 N acts on a body of mass 0.5 kg for 0.25 s starting from rest. What is its momentum now?

JIPMER 2018 Solution View → 33

A box of mass 8 kg is placed on a rough inclined plane of inclination 30^ . Its downward motion can be prevented by applying a horizontal force F , then value of F for which fricti

JIPMER 2018 Solution View → 34

A mass M is hung with a light inextensible string as shown in the figure. Find the tension of the horizontal string.

JIPMER 2018 Solution View → 35

A ball of 0.5 kg collided with wall at 30^ and bounced back elastically. The speed of ball was 12 ~m / s . The contact remained for 1 s . What is the force applied by wall on ball?

JIPMER 2018 Solution View → 36

Which one of the following statements is incorrect?

NEET 2018 Solution View → 37

A block of mass m is placed on a smooth inclined wedge A B C of inclination θ as shown in the figure. The wedge is given an acceleration a towards the right. The relation betw

NEET 2018 Solution View → 38

Assertion : Pseudo force is an imaginary force which is recognised only by a non-inertial observer to explain the physical situation according to Newton's laws. Reason : Pseudo for

AIIMS 2017 Solution View → 39

Assertion : Two bodies of masses M and m(M>m) are allowed to fall from the same height if the air resistance for each be the same then both the bodies will reach the earth simultan

AIIMS 2017 Solution View → 40

Same spring is attached with 2 ~kg , 3 ~kg and 1 ~kg blocks in three different cases as shown in figure. If x₁, x₂, x₃ be the extensions in the spring in the three cases, then

AIIMS 2017 Solution View → 41

The figure shows a horizontal force F acting on a block of mass M on an inclined plane (angle ). What is the normal reaction N on the block?

AIIMS 2017 Solution View → 42

The mass of a proton is 1847 times that of an electron. A electron and a proton are injected into a uniform electric field at right angle to the direction of the field with the sam

JIPMER 2017 Solution View → 43

The upper half of an inclined plane of inclination is perfectly smooth while the lower half rough. A block starting from rest at the top of the plane will again come to rest at the

JIPMER 2017 Solution View → 44

Two masses 10 kg and 20 kg respectively are connected by a massless spring as shown in figure. A force of 200 N acts on the 20 kg mass. At the instant shown is figure the 10 kg mas

JIPMER 2017 Solution View → 45

A long block A of mass M is at rest on a smooth horizontal surface. A small block B of mass M / 2 is placed on A at one end and projected along A with some velocity v . The coeffic

JIPMER 2017 Solution View → 46

A skier starts from rest at point A and slides down the hill without turning or breaking. The friction coefficient is . When he stops at point B , his horizontal displacement is S

JIPMER 2017 Solution View → 47

Two blocks A and B of masses 3 m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The

NEET 2017 Solution View → 48

A spring of force constant k is cut into lengths of ratio 1   :   2   :   3 . They are connected in series and the new force constant is k ′ . If now they

NEET 2017 Solution View → 49

A body of mass 60 ~kg is suspended by means of three strings P, Q and R as shown in the figure is in equilibrium. The tension in the string P is

AIIMS 2016 Solution View → 50

A stone of mass 0.3 ~kg attached to a 1.5 ~m long string is whirled around in a horizontal circle at a speed of 6 ~m ~s ⁻¹ . The tension in the string is

AIIMS 2016 Solution View → 51

Consider the system shown in figure. The pulley and the string are light and all the surfaces are frictionless. The tension in the string is (take g=10 ~m ~s ⁻² )

AIIMS 2016 Solution View → 52

A body at rest slides down a 30^ inclined plane. The time taken by it to slide down is twice the time it takes when it slides down the same distance in the absence of friction. The

JIPMER 2016 Solution View → 53

A body is moving along a rough horizontal surface with an initial velocity of 10 ~ms ⁻¹ . If the body comes to rest after travelling a distance of 12 m , then the coefficient of sl

JIPMER 2016 Solution View → 54

A particle slides down on a smooth incline of inclination 30^ , fixed in an elevator going up with an acceleration 2 ~m / s ^2 . The box of incline has a length 4 m . The time take

JIPMER 2016 Solution View → 55

A light string passes over a frictionless pulley. To one of its ends a mass of 8 kg is attached. To its other end two masses of 7 kg each are attached. The acceleration of the syst

JIPMER 2016 Solution View → 56

In the given figure, a = 15   m   s - 2 represents the total acceleration of a particle moving in the clockwise direction in a circle of the radius R = 2 .5   m &#16

NEET 2016 Solution View → 57

What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?

NEET 2016 Solution View → 58

A particle of mass 10   g moves along a circle of radius 6.4   cm   with a constant tangential acceleration. What is the magnitude of this acceleration if the kineti

NEET 2016 Solution View → 59

A car is negotiating a curved road of radius R . The road is banked at an angle θ . The coefficient of friction between the tyres of the car and the road is μ s . The max

NEET 2016 Solution View → 60

Assertion : Centripetal force is always required for motion in curved path. Reason : On a banked curved track, vertical component of normal reaction provides the necessary centripe

AIIMS 2015 Solution View → 61

A mass M is tied to the top of two identical poles of height H using massless strings of equal length. The mass is at height h above the ground at equilibrium. If the distance betw

AIIMS 2015 Solution View → 62

Assertion : Use of ball bearing between two moving parts of a machine is a common practice. Reason : Ball bearing reduces rolling friction and provides good stability.

AIIMS 2015 Solution View → 63

A pendulum having a bob of mass m is hanging in a ship sailing along the equator form east to west. When the strip is stationary with respect to water, the tension in the string is

JIPMER 2015 Solution View → 64

A block of mass 2 kg is pushed against a rough vertical wall with a force of 40 N , coefficient of static friction being 0.5. Another horizontal force of 15 N , is applied on the b

JIPMER 2015 Solution View → 65

A block slides down on an incline of angle 30^ with an acceleration g 4 . Find the kinetic friction coefficient.

JIPMER 2015 Solution View → 66

A monkey of mass 15 kg is climbing on a rope with one end fixed to the ceiling. If it wishes to go up with an acceleration 1 ~m / s ^2 , how much force should it apply to the rope

JIPMER 2015 Solution View → 67

A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30 ° , the box starts to slip and slides 4

NEET 2015 Solution View → 68

Three blocks A, B and C, of masses 4   kg ,   2   kg 1   kg and respectively, are in contact on a frictionless surface, as shown. If a force of 14   N is a

NEET 2015 Solution View → 69

A block A of mass m 1 rests on a horizontal table. A light string connected to it passes over a frictionless pulley at the edge of table and from its other end another block B of m

NEET 2015 Solution View → 70

A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mas

NEET 2015 Solution View → 71

A block of mass 2 ~kg is placed on the floor. The coefficient of static friction is 0.4 . If a force of 2.8 ~N is applied on the block parallel to the floor, the force of friction

AIIMS 2014 Solution View → 72

A cyclist is moving in a circular track of radius 80 ~m with a velocity of 36 ~km ~h ⁻¹ . He has to lean from the vertical approximately through an angle (Take g=10 ~m ~s ⁻² )

AIIMS 2014 Solution View → 73

Assertion : A body subject to three concurrent forces may be in equilibrium. Reason: For equilibrium, the sum of all the concurrent forces acting at a point should be zero.

AIIMS 2014 Solution View → 74

A block B is pushed momentarily along a horizontal surface with an initial velocity v . If is the coefficient of sliding friction between B and the surface, block B will come to re

JIPMER 2014 Solution View → 75

A balloon with mass m is descending down with an acceleration a (where a < g ) . How much mass should be removed from it so that it starts moving up with an acceleration a ?

NEET 2014 Solution View → 76

A system consists of three masses m 1 ,   m 2 and m 3 connected by a string passing over a pulley P . The mass m 3 hangs freely and m 2 and m 1 are on a rough horizontal table

NEET 2014 Solution View → 77

A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28. The maximum velocity with which the car can be moved, is

JIPMER 2013 Solution View → 78

The upper half of an inclined plane of inclination is perfectly smooth while lower half is rough. A block starting from rest at the top of the plane will again come to rest at the

NEET 2013 Solution View → 79

A car is moving in a circular horizontal track of radius 10 ~m the roof of the car by a light wire of length 1.0 ~m . The angle made by the wire with the vertical is:

NEET 2013 Solution View → 80

Three blocks with masses m, 2 m and 3 m are connected by strings, as shown in the figure. After an upward force F is applied on block m , the masses move upward at constant speed v

NEET 2013 Solution View → 81

Assertion : Animate object can accelerate in the absence of external force. Reason : Newton's second law is not applicable on animate object.

AIIMS 2012 Solution View → 82

An object start sliding on a frictionless inclined plane and from same height another object start falling freely.

JIPMER 2012 Solution View → 83

The engine of a jet aircraft applies a thrown force of 10^5 ~N during take off and causes the plane to attain a velocity of 1 ~km / s in 10 s . The mass of the plane is

JIPMER 2012 Solution View → 84

Three concurrent co-planar forces 1 ~N , 2 ~N and 3 N acting along different directions on a body

JIPMER 2012 Solution View → 85

A stone weighing 1 kg and sliding on ice with a velocity of 2 ~m / s is stopped by friction in 10 s . The force of friction (assuming it to be constant) will be

JIPMER 2012 Solution View → 86

A car of mass 1000 ~kg negotiates a banked curve of radius 90 ~m on a frictionless road. If the banking angle is 45^ , the speed of the car is

NEET 2012 Solution View → 87

A solid cylinder of mass 3 ~kg is rolling on a horizontal surface with velocity 4 ~ms ⁻¹ . It collides with a horizontal spring of force constant 200 Nm ⁻¹ . The maximum compressio

NEET 2012 Solution View → 88

A car of mass m is moving on a level circular track of radius R . If _s represents the static friction between the road and tyres of the car, the maximum speed of the car in circul

NEET 2012 Solution View → 89

A bullet of mass 20 g and moving with 600 ~m / s collides with a block of mass 4 kg hanging with the string. What is velocity of bullet when it comes out of block, if block rises t

JIPMER 2011 Solution View → 90

A person of mass 60 ~kg is inside a lift of mass 940 ~kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 ~m / s ^2 . If g=10 ~m / s

NEET 2011 Solution View → 91

A conveyor belt is moving at a constant speed of 2 ~m / s . A box is gently dropped on it. The coefficient of friction between them is =0.5 . The distance that the box will move re

NEET 2011 Solution View → 92

Two masses M₁=5 ~kg and M₂=10 ~kg are connected at the ends of an inextensible string passing over a frictionless pulley as shown. When the masses are released, then the accelerati

AIIMS 2010 Solution View → 93

Assertion : A horse has to pull a cart harder during the first few steps of his motion. Reason : The first few steps are always difficult.

AIIMS 2010 Solution View → 94

Let T₁ and T₂ be the time periods of springs A and B when mass M is suspended from one end of each spring. If both springs are taken in series and the same mass M is suspended from

AIIMS 2010 Solution View → 95

A block of mass m is pulled along a horizontal surface by applying a force at an angle with the horizontal. If the block travels with a uniform velocity and has a displacement d an

AIIMS 2010 Solution View → 96

A weightless thread can bear tension upto 37 N . A stone of mass 500 g is tied to it and revolved in a circular path of radius 4 m in a vertical plane. If g=10 ~ms ⁻² , then the ma

JIPMER 2010 Solution View → 97

A block of mass m is in contact with the cart C as shown in the figure. The coefficient of static friction between the block and the cart is . The acceleration of the cart that wil

NEET 2010 Solution View → 98

A gramophone record is revolving with an angular velocity . A coin is placed at a distance r from the centre of the record. The static coefficient of friction is . The coin will re

NEET 2010 Solution View → 99

Which of the following graph depicts spring constant k versus length l of the spring correctly?

AIIMS 2009 Solution View → 100

A body of mass 5 ~kg moving with a speed of 1.5 ~m / s on a horizontal smooth surface collides with a nearly weightless spring of force constant k=5 ~N / m . The maximum compressio

AIIMS 2009 Solution View → 101

Assertion : The size and shape of the rigid body remains unaffected under the effect of external forces. Reason : The distance between two particles remains constant in a rigid bod

AIIMS 2009 Solution View → 102

Three equal weights of 3 ~kg each are hanging on a string passing over a frictionless pulley as shown in figure. The tension in the string between masses II and III will be (Take g

AIIMS 2009 Solution View → 103

A block B is pushed momentarily along a horizontal surface with an initial velocity v . If is the coefficient of sliding friction between B and the surface, block B will come to re

JIPMER 2009 Solution View → 104

Diwali rocket is ejecting 50 g of gases / s at a velocity of 400 ~m / s . The accelerating force on the rocket will be

JIPMER 2009 Solution View → 105

The mass of a lift is 2000 ~kg . When the tension in the supporting cable is 28000 ~N , then its acceleration is

NEET 2009 Solution View → 106

A body, under the action of a force F =6 i -8 j +10 k , acquires an acceleration of 1 ms ⁻² . The mass of this body must be

NEET 2009 Solution View → 107

The mass of lift is 2000 ~kg . When the tension in the supporting cable is 28000 ~N , then its acceleration is :

NEET 2009 Solution View → 108

A body, under the action of a force F =6 i -8 j +10 k , acquires an acceleration of 1 ~m / s ^2 . The mass of this body must be :

NEET 2009 Solution View → 109

(P, Q ) and (R ) are three coplanar forces acting at a point and are in equilibium. Given : (P=1.9318 ~kg ) wt ( [ ₁=0.9659 ] ), the value of (R ) (in ( kg ) wt) is

AIIMS 2008 Solution View → 110

A motor cycle is going on an overbridge of radius R . The driver maintains a constant speed. As the motor cycle is ascending on the overbridge, the normal force on it

JIPMER 2008 Solution View → 111

A block B is pushed momentarily along a horizontal surface with an initial velocity V . If is the coefficient of sliding friction between B and the surface, block B will come to re

NEET 2007 Solution View → 112

Assertion : Use of ball bearings between two moving parts of a machine is a common practice. Reason : Ball bearings reduce vibrations and provide good stability.

AIIMS 2006 Solution View → 113

A person used force (F) , shown in figure to move a load with constant velocity on surface. Identify the correct surface profile.

AIIMS 2006 Solution View → 114

Which is true for rolling friction ( _r ) , static friction ( _s ) and kinetic friction ( _k ) :

JIPMER 2006 Solution View → 115

Two weights w₁ and w₂ are suspended to the two strings on a frictionless pulley. When the pulley is pulled up with an acceleration g , then the tension in the string is :

JIPMER 2006 Solution View → 116

A person is standing in an elevator. In which situation he finds his weight less?

AIIMS 2005 Solution View → 117

Assertion : The driver in a vehicle moving with a constant speed on a straight road is in a noninertial frame of reference. Reason : A reference frame in which Newton's laws of mot

AIIMS 2004 Solution View → 118

The coefficient of static friction ₈ , between block A of mass 2 ~kg and the table as shown in the figure is 0.2 . What would be the maximum mass value of block B so that the two b

NEET 2004 Solution View → 119

Two springs of spring constant k₁ and k₂ are joined in series. The effective spring constant of the combination is given by:

NEET 2004 Solution View → 120

A block mass m is placed on a smooth wedge of inclination . The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedg

NEET 2004 Solution View →
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