NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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A man is standing on a stationary car of mass

m

placed on a smooth rail. The man starts walking with velocity

v

relative to car. Find the mass of the man if work done by him when he moves along the rails is same when he walks normal to the rails

View answer and explanation

Correct option: D

It is not possible

The correct answer is D (It is not possible) because the work done by the man will always be different when he walks along the rails versus normal to the rails due to the different components of velocity and momentum transfer.

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