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JEE Main202228 Jun 2022Morning ShiftPhysicsCenter of Mass, Momentum and CollisionActual

A man of 60 kg is running on the road and suddenly jumps into a stationary trolly car of mass 120 kg . Then the trolly car starts moving with velocity 2 m s - 1 . The velocity of the running man was _____ m s - 1 , when he jumps into the car.

Correct answer

0

Step-by-step solution

Applying conservation of the momentum, m m u = m m + m t v ⇒ 60 u = 60 + 120 × 2 ⇒ u = 6   m   s - 1

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