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Pull down in the middle a heavy chain, f...

Pull down in the middle a heavy chain, fixed at both ends, in such a way that it forms a triangle. Does the centre of mass takes up a higher or lower position?

A

Centre of mass comes down

B

Centre of mass goes up

C

Centre of mass remains stationary

D

Cannot be predicted

Text Solution

Verified by Experts

The correct Answer is:
B
Ans.(2)
system always want to maintain the states of lowest PE. So, disturbing the system will result in increase of PE
So, potential enery of the system increases, hence centre of mas goes up.
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