Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET2010PhysicsMotion in One Dimension

An athelete completes one round of a circular track of radius R in 40 ~s . What will be his displacement at the end of 2 20 ~s ?

Options

  1. A7 R
  2. B2 R
  3. C2 R
  4. D7 R

Correct answer

B. 2 R

Step-by-step solution

The time =2 20 ~s =2 +20 ~s =2 60 ~s +20 ~s =140 ~s In 40 ~s athelete completes =1 round In 140 ~s athelete will completes = 140 40 round = 120 40 + 20 40 =3+ 1 2 round The displacement in 3 round =0 So displacement in 1 2 round =A B=2 R

Practice Motion in One Dimension on Quantrex Academy →

More from Motion in One Dimension

An object is dropped from a certain point A at a height 'h' from the ground. During it's journey straight downwards, the object passes points B and C such that the ratio of time ta 2026A particle moves along a parabolic path y = 9x^2 in such a way that the x component of velocity remains constant. If, the acceleration of the particle is 2j ms⁻² , find the x compo 2026A car, starting from rest, accelerates at a rate of through a distance S, then continues at constant speed for time t and then decelerates at a rate of 2 to come to rest. If the to 2026A car covers the first half of the distance between two places at 40 km/h and another half at 50 km/h. The average speed of the car is 2026The velocity of a particle moving along x -axis is given as V = x^2 - 5x + 4 (in m/s) where x denotes the x -coordinate of the particle in metres. The magnitude of the acceleration 2026If the displacement (s in metre) of a moving particle in terms of time (t in second) is s=t^3-6 t^2+18 t+9 , then the minimum velocity attained by the particle is 2025A ball projected vertically upwards with a velocity 'v' passes through a point P in its upward journey in a time of ' x ' seconds. From there, the time in which the ball again pass 2025The displacement (x) and time (t) graph of a particle moving along a straight line is shown in the figure. The average velocity of the particle in the time of 10 s is 2025 Full Motion in One Dimension list All AP EAMCET PYQs