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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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There are some passengers inside a stationary railway compartment. The centre of mass of the compartment itself (without the passengers) is

C_1,

while the centre of mass of the 'compartment plus passengers' system is

C_2.

If the passengers move about inside the compartment then

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Correct option: C

C_1

Will move but

C_2

will be stationary with respect to the ground

Option C (

C_1

Will move but

C_2

will be stationary with respect to the ground) is correct because the center of mass of the entire system (compartment + passengers) remains stationary if no external force acts on the system, while the center of mass of the compartment alone can move.

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