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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

A body of mass is suspended from a string of length . What is the minimum horizontal velocity that should be given to the body in its lowest position so that it may complete one full revolution in the vertical plane, with the point of suspension as the centre of the circle?

Answer: (D)

Solution

This is the standard minimum-speed-for-vertical-circular-motion result:

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Question ID VK-158410