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Q. A stone tied to a string is rotated in a vertical circle. The minimum speed of the stone during a complete vertical circular motion

NTA AbhyasNTA Abhyas 2022

Solution:

Minimum speed with which the string is rotating in a vertical circle, $\left(\right.v\left.\right)=\sqrt{g r}$
i.e, the minimum speed of stone is independent of the mass of stone.