Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202419 May 2024Evening ShiftPhysicsLaws of MotionActual

A block of mass 1.5 kg kept on a rough horizontal surface is given a horizontal velocity of 10 ~ms ⁻¹ . If the block comes to rest after travelling a distance of 12.5 m , the coefficient of kinetic friction between the surface and the block is (Acceleration due to gravity =10 ~ms ⁻² )

Options

  1. A0.2
  2. B0.4
  3. C0.8
  4. D0.6

Correct answer

B. 0.4

Step-by-step solution

aligned & u =10 ~ms ⁻¹, ~m =1.5 ~kg & a = f m = mg m = Mg aligned Stopping distance, S= u^2 2 a aligned & 12.5= (10)^2 2 10 & =0.4 aligned

Practice Laws of Motion on Quantrex Academy →

More from Laws of Motion

A block of metal, of 25g mass moves down without acceleration when the plane is inclined at an angle of 30^ . When the inclination is increased by 30^ , find the downward accelerat 2026A man weighs 80 kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 6 m/s ^2 . What would be his weight in kg? ( g = 10 m/s ^2 ) 2026A mass M is hung with a light inextensible string as shown in figure. Find the tension of the horizontal string. 2026A horizontal force of 5 N is applied on a stationary body of mass 5 kg, which is initially at rest on a frictionless table. The change in kinetic energy of the body in 10 s is 2026The apparent weight of a girl of mass 30 kg when she is in a lift moving vertically upwards with an acceleration of 2 ~ms ⁻² is (Acceleration due to gravity =10 ~m ~s ⁻² ) 2025If a stone of mass 0.5 kg tied to one end of a wire is whirled in a circular path of radius 2 m with a speed 40 rev / min in a horizontal plane, then the tension in the wire is nea 2025If the breaking strength of a rope is 4 3 times the weight of a person, then the maximum acceleration with which the person can safely climb up the rope is (g - accelereation due t 2025A block of mass 2 kg is placed on a rough horizontal surface. If a horizontal force of 20 N acting on the block produces an acceleration of 7 ~m ~s ⁻² in it, then the coefficient o 2025 Full Laws of Motion list All AP EAMCET PYQs