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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A see-saw of length 6 m is pivoted at its centre. A child of mass 20 kg is sitting at one of its ends. Where should another child, of mass 30 kg, sit on the other end from the centre of see-saw, so that it is balanced? [MHT-CET 2020]

Answer: (C)

Solution

Balance of torques about the pivot: gives m from

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Question ID VK-062439