Home Physics System of Particles Rotational Motion Centre of Mass A can of height h is filled with liquid of u…
Physics System of Particles Rotational Motion Centre of Mass MCQ (Single Correct)

A can of height h is filled with liquid of uniform density ρ . If the liquid is coming out from the bottom then centre of mass of the " can + water in the can "

A
first ascends and then descends
B
first descends and then ascends
C
always decreases
D
none of these

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The correct answer is:
B

Initially, centre of mass of the "can + water in the can" will be at the geometrical centre of the can. As the liquid is coming out from the bottom, then centre of mass move downwards but after sometime it will move upwards and comes to its initial position. Hence, centre of mass first descends and then ascends.

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