A man of mass m is standing at one end of a boat of mass M and length L. The man walks to the other end of the boat. The displacement of

JEE Main Physics question

A man of mass is standing at one end of a boat of mass and length . The man walks to the other end of the boat. The displacement of

(A)Centre of mass of the system is zeroCorrect
(B)Boat is Correct
(C)Man is
(D)Boat is

Answer: (A),(B)

Solution

With no external horizontal force (water assumed frictionless for this momentum-conservation idealisation), the CM of the man+boat system stays fixed — (A) is correct. Letting the man's displacement (relative to ground) be and the

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Question ID VK-158689