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A child swinigng on a wing in a silting ...

A child swinigng on a wing in a silting position stands up, then the time period of the swing will

A

increase

B

decrease

C

remain same

D

increase, if the child is long and decrease, if the child is short.

Text Solution

Verified by Experts

The correct Answer is:
B
As `T=2pisqrt(l/g)` . Here, l is the distance between point of suspension of swing and centre of mass of child executing S.H.M. When child stands up, then l decreases. Hence the time period decreases.
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