chapter 9 problem 12 please help i will rate if answered correctly. MESSAGE MY I

Question

chapter 9 problem 12

please help i will rate if answered correctly.

MESSAGE MY INSTRUCTOR FULL SCREENPRINTER VERSION BACK Chapter 09, Problem 1:2 2 Your answer is partially correct. Try again. The figure shows a person whose weight is w 744 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position 0.840 m0.410 m (a) Number 122 ni (b) Number 11250 SHOW HINT d on the Point Potential Policy set by your instructor. ent/test/agl -asnmt191696 926 PM earch

Explanation / Answer

Given,

W = 744 N;

a)Let H be the force from hand and F be that from foot

from figure, considering moments abt CG

H x 0.410 - F x 0.84 = 0

H = 2.049 F

For moving forward, the condition is:

H + F = 744 N

put the value of H in abive eqn

2.049 F + F = 744 N => F = 244.01 N

H = 2.049 x 244.01 = 499.98 N

Hence, H = 499.98 N ----------> Ans(a)

F = 244.01 N ---------------> Ans(b)

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