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

a boy of mass 50kg running at 5m/s jumps on to a 20kg trolley travelli

1.	a boy of mass 50kg running at 5m/s jumps on to a 20kg trolley travelling in the same direction at 1.5 m/s .what is their common velocity
Answer» M1V1 + m2v2 = (M1+M2)V M1 - MASS of boy =50kg V1 - SPEED of boy= 5m/s M2 mass of trolley = 20kg V2 - speed of trolley = 1.5 m/s V - final velocity Solving for v , we get , v = (250+30)/70 V = 4m/s I hope you GOT

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

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