A girl swinging on a swing in sitting position suddenly stands up. The period of swing then will be :

A girl swinging on a swing in sitting position suddenly stands up. The

1.	A girl swinging on a swing in sitting position suddenly stands up. The period of swing then will be :
Answer» increased decreased the same none of these. Solution :When the GIRL stands up then centre of gravity moves up and HENCE length of pendulum is decreased. As T `prop sqrt(l)`. So time period ALSO decreases. Hence the CORRECT choice is (B).

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A girl swinging on a swing in sitting position suddenly stands up. The period of swing then will be :

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