A boy of mass 50 Kg running at 5m/s jumps on to a 20 Kg trolley travel

1.	A boy of mass 50 Kg running at 5m/s jumps on to a 20 Kg trolley travelling in the same direction at 1.5m/s. Find their common velocity.
Answer» Answer: The COMMON velocity is 4m/s. Explanation: Using CONSERVATION of momentum MV + mv = (M+m)v' Where, M= MASS of the boy - 50 kb m= mass of the trolley - 20 kb V - velocity of the trolley- 1.5 m/s v' - common velocity- x (50+20) x= (50×5+20×1.5) x = 4m/s Answer HOPE IT HELPS YOU

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

Answer»

Answer:

The COMMON velocity is 4m/s.

Explanation:

Using CONSERVATION of momentum

MV + mv = (M+m)v'

Where,

M= MASS of the boy - 50 kb

m= mass of the trolley - 20 kb

V - velocity of the trolley- 1.5 m/s

v' - common velocity- x

(50+20) x= (50×5+20×1.5)

x = 4m/s Answer

HOPE IT HELPS YOU

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