[" 3.A boy of mass "50" kg running "5m/" s jumps on to a "20kg" trolley travelling in the "],[" same direction at "1.5m/s" .find their common velocity."]

A boy of mass 50 kg running at 5 m/s jumps on to a 20 kg trolley travelling in the same direction at 1.5 m/s. What is their common velocity ?

A boy of mass 50 kg running at 5ms^-1 jumping a trolly of 20 kg travelling in the same direction 1.5 ms^-1 . Find their common velocity.

A boy of mass 60 kg running at 3//s jumps on to a trolley of mass 140 kg moving with a velocity of 1.5m//s in the same direction . What is their common velocity?

The car A of mass 1500 kg, travelling at 25 m/s collides with another car B of mass 1000 kg travelling at 15 m/s in the same direction. After collision the velocity of car A becomes 20 m/s. Calculate the velocity of car B after the collision.

A girl of mass 25 kg running with a speed of 1*5 m/s jumps on a skateboard of mass 2 kg kept on a surface . What will be their combined velocity ?

A girl of mass 25 kg running with a speed of 1*5 m/s jumps on a skateboard of mass 2 kg kept on a surface . What will be their combined velocity ?

A body of mass 0.1 kg travelling with a velocity of 5 m/s, collides head-on with another body of mass 0.2 kg travelling in the same direction with a velocity of 1.2 m/s. If the two bodies stick together after collision, their common velocity is

A body of mass 0.1 kg travelling with a velocity of 5 m/s, collides head-on with another body of mass 0.2 kg travelling in the same direction with a velocity of 1.2 m/s. If the two bodies stick together after collision, their common velocity is

The car A of mass 1500kg , travelling at 25m//s collides with another car B of mass 1000kg travelling at 15m//s in the same direction. After collision, the velocity of car A becomes 20m//s . Calcualte the velocity of car B afrer collison.

A body of mass 2 kg, travelling at 4 m/s makes a head-on collision with a body of mass 1 kg travelling in the opposite direction with a velocity of 2 m/s, the velocities of the two bodies after collision are