having trouble coming up with the correct answers here. If you could explain, it

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having trouble coming up with the correct answers here. If you could explain, it is appreciated, will Rate the highest!

A)Determine the normal force exerted by the floor on each hand.

B)Determine the normal force exerted by the floor on each foot.

having trouble coming up with the correct answers here. If you could explain, it is appreciated, will Rate the highest! A man doing push-ups pauses in the position shown in the figure(Figure 1). His mass= 77. A)Determine the normal force exerted by the floor on each hand. B)Determine the normal force exerted by the floor on each foot.

Explanation / Answer

so sum of forces in the y: hand + foot - mg = 0 sum of torques about the feet m g .95 - hand (1.35) = 0 a) hands = 77*9.81*.95/1.35=531.6 N so each feels half of that 265.8 N b) foot = mg - hand = 77*9.81-531.6 = 223.8 each foot feels half of that 111.9 N

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