A molecule of mass m moving with a velocity v makes 5 elastic collisions with a wall of the container per second. The change in its momentum per second will be

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

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

A ball of mass m moving with velocity V , makes a head on elastic collision with a ball of the same moving with velocity 2 V towards it. Taking direction of V as positive velocities of the two balls after collision are.

A ball of mass m moving with velocity v , collide with the wall elastically as shown in the figure. After impact the change in angular momentum about P is : .

A ball of mass m moving with velocity v , collide with the wall elastically as shown in the figure. After impact the change in angular momentum about P is : .

A molecule of mass 'm' collide with a wall of container in normal direction with a velocity c. if the collision is perfectly elastic, then the change in momentum of the molcules is

n bullets per sec each of mass m moving with velocity v strike normally on a wall. The collision is elastic then force on wall is-

A body of mass m is at rest. Another body of same mass moving with velocity V makes head on elastic collision with the first body. After collision the first body starts to move with velocity