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JEE Main Physics question

PhysicsWork, Energy and PowerJEE Main

The bob of a pendulum of mass and length is displaced from the vertical and gently released. In order that the string may not break upon passing through the lowest point, its minimum strength must be

Answer: (C)

Solution

If is the speed on reaching the lowest point, $Missing argument for \tfrac\tfrac12 = mgL

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Question ID VK-157801