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 collides head on elastically with another identical ball moving with velocity - V. After collision

A ball of mass m moving with velocity v collides head on elastically with another identical ball moving with velocity - V. After collision

A ball of mass M moving with a velocity v collides perfectly inelastically with another ball of same mass but moving with a velocity v in the opposite direction. After collision

A ball of mass m moving with a velocity collides head on elastically with another of the same mass m but moving with a - in the opposite direction). After the collision

A ball of mass 1kg moving with a velocity of 15m // s undergoes a head on elastic collision with another ball of unknown mass at rest, and rebound with a velocity of 10m//s . What is the mass of the other ball?

A ball of mass m moving with a velocity v undergoes an oblique elastic collision with another ball of the same mass m but at rest. After the collision if the two balls move with the same speeds , the angle between their directions of motion will be:

A ball of mass m moving with velocity v collides elastically with another ball of identical mass coming from the opposite direction with velocity 2v. Their velocities after collisions are-

A ball moving with a velocity 12m/s strikes an identical ball at rest.After collision both balls move in directions making 30^(0) with original direction of motion.speeds of the balls after collision are (in ms^(-1) ) ?