A body of mass 5kgmoving with velocity of 16 m/sec comes to rest in 2seconds then average retarding force acting on the body is

A body of mass 5 kg moving on a horizontal surface with a velocity of 10 ms^(-1) comes to rest in 2s. The force required to make this body move with a velocity of 10 ms^(-1) on the same surface is

A body of mass m, moving with velocity mu collides elasticity with another body at rest having mass M. If the body of mass M moves with velocity V, then the velocity of the body of mass m after the impact is

A body of mass 2 kg moving with a velocity of 3 m/sec collides head on with a body of mass 1 kg moving in opposite direction with a velocity of 4 m/sec. After collision, two bodies stick together and move with a common velocity which in m/sec is equal to

A body of mass 0.1 g moving with a velocity of 10 m/s hits a spring (fixed at the other end) of force constant 1000 N/m and comes to rest after compressing the spring. The compression of the spring is

A body of mass 40 gm is moving with a constant velocity of 2cm//sec on a horizontal frictionless table. The force on the table is

A body of mass M moving with velocity V explodes into two equal parts. If one comes to rest and the other body moves with velocity v, what would be the value of v ?

A body of mass m = 4 kg moving with a velocity 10 m/s collides head - on with another object for 1.5 sec. The impulsive force versus time graph is shown during the collision of the body and object. Find the velocity of body after collision.

A body moving with uniform velocity is stopped in 0.25 second by applying a retarding force of 200 Newton. The intial momentum of the body will be :-

A body of mass m moving with a velocity v is approaching a second object of same mass but at rest. The kinetic energy of the two objects as viewed from the centre of mass is

A body of mass m_(1) moving with a velocity 3 m//s collides with another body at rest of m_(2) . After collision the velocities of the two bodies are 2 m//s and 5 m//s , respectively , along the direction of motion of m_(1) . The ratio m_(1)//m_(2) is