Q.

A balloon is filled with water. If the total water leaks out from the balloon through a hole ,then centre of mass

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a

moves down

b

moves up

c

First moves up and rises down

d

First moves down and rises up

answer is C.

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Detailed Solution

When a balloon is filled with water. Let centre of mass remains at a point A.

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As water is leaking out centre of mass moves towards heavier side. So it lowers down until the water is completely leaked out after that it will raises to the symmetrical position.

So options A, B and D are not possible.

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