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  4. A child swinging on a swing in sitting position stands up, then the time period of the swing will

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Q. A child swinging on a swing in sitting position stands up, then the time period of the swing will

NTA AbhyasNTA Abhyas 2022

Solution:

The time period will decrease. When the child stands up, the centre of gravity is shifted upwards and so the length of swing decreases, hence from the expression of the time period which is given by $T=2\pi \sqrt{\frac{l}{g}}$ , the time period will decrease.