A particle of mass m strikes elastically on a wall with velocity v, at an angle of `60^(@)` from the wall then magnitude of change in momentum of ball along the wall is

A body of mass m collides against a wall with the velocity v and rebounds with the same speed. Its magnitude of change of momentum is

A body of mass m collides against a wall with the velocity v and rebounds with the same speed. Its magnitude of change of momentum is

A particle of mass m strikes a wall with speed v at an angle 30^(@) with the wall elastically as shown in the figure. The magnitude of impulse imparted to the ball by the wall is

A particle of mass m strikes a wall with speed v at an angle 30^(@) with the wall elastically as shown in the figure. The magnitude of impulse imparted to the ball by the wall is

A particle of mass m strikes a wall normally with a velocity v and then its velocity reversed. The change in momentum is :

A molecule of mass m moving at a velocity v impinges elastically on the wall at an angle a with the wall. Then

A 1 kg particle strikes a wall with velocity 1 m/s at an angle of 60^o with the wall and reflects at the same angle. If it remains in contact with the wall for 0.1 s, then the force is

A 1 kg particle strikes a wall with velocity 1 m/s at an angle of 60^o with the wall and reflects at the same angle. If it remains in contact with the wall for 0.1 s, then the force is