Question

A woman of mass m = 55.0 kg sits on the left end of a seesaw a plank of length L >4.00 m, pivoted in the middle as in Figure. (a) First compute the torques on the seesaw about an axis that passes through the pivot point. Where should a man of mass MF75.0kg sit if the system (seesaw plus man and woman) is to be balanced? (b) Find the normal force exerted by the pivot if the plank has a mass of mol =12.0 kg.

Answer 1

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