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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two children's one of 20 kg and 35 kg sit at the two ends of a see saw. Each at 3 m from centre of see-saw where the third child of mass 10 kg must be seated to become seesaw horizontal:

Answer: (A)

Solution

Net torque of the two children is kg m, which the 10 kg child balances at

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Question ID VK-040347