A truck moving on horizontal road towards east with velocity `20ms^(1)` collides elastically with a light ball moving with velocity `25ms^(-1)` along west. The velocity of the ball just after collision

A truck moving on horizontal road east with velocity 20ms^(–1) collides elastically with a light ball moving with velocity 25ms^(–1) along west. The velocity of the ball just 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 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 elastically with another ball of identical mass coming from the opposite direction with velocity 2v. Their velocities after collisions are-

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 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.