Question

Need help with part C. Thank you!

PRACTICE IT Use the worked example above to help you solve this problem. A woman of mass m = 53.6 kg sits on the left end of a seesaw-a plank of length L = 4.39 m, pivoted in the middle as shown in the figure. (a) First compute the torques on the seesaw about an axis that passes through the pivot point. Where should a man of mass M = 68.8 kg sit if the system (seesaw plus man and woman) is to be balanced? 1.71 m (b) Find the normal force exerted by the pivot if the plank has a mass of mal = 12.8 kg. 1324.96 N (c) Repeat part (a), but this time compute the torques about an axis through the left end of the plank.

This is the figure above. However, it has different values than the homework question above.

Answer 1

TH given Question can be Solved by using Static equilibrium condition

that is,$\sum \tau =0$

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