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?

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 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

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 smooth 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 smooth surface. What will be their combined velocity?

A shell of 20kg moving at 50m/s bursts into two parts of masses 15kg and 5kg .If the larger part continues to move in the same direction at 70m/s .What is the velocity and direction of motion of the other piece.

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 truck of mass 2500 kg moving at 15m//s collides with a car of mass 1000kg moving at 5m//s in the opposite direction . With what velocity would the two move together?