A long uniform board of mass rests on a fulcrum located from its left end

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A 3.0 m3.0\,\text{m} long uniform board of mass 12 kg12\,\text{kg} rests on a fulcrum located 1.0 m1.0\,\text{m} from its left end. A child of mass 25 kg25\,\text{kg} sits at the left end of the board. Where, measured from the fulcrum, should a second child of mass 35 kg35\,\text{kg} sit on the right side so that the board remains balanced? (a) 0.71 m0.71\,\text{m} to the right (b) 1.08 m1.08\,\text{m} to the right (c) 0.54 m0.54\,\text{m} to the right (d) 0.89 m0.89\,\text{m} to the right

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