[" 5.Two boys weighing "40kg" and "50kg"...

[" 5.Two boys weighing "40kg" and "50kg" are sitting on either side of a wooden plank at distance "],[4.5m" and "1.5m" respectively from fulcrum coinciding with the centre of gravity of the system."],[" Where must a third boy weighing "35kg" sit to secure balance? "[3m]]

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[" 5.Two boys weighing "40kg" and "50kg" are sitting on either side of a wooden plank at distance "],[4.5m" and "1.5m" respectively from fulcrum coinciding with the centre of gravity of the system."],[" Where must a third boy weighing "35kg" sit to secure balance? "[3m]]

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