A truck pulls boxes up an incline plane. The truck can exert a maximum force of 3,200 N3,200N. If the plane's incline is pi/8 π8 and the coefficient of friction is 3/5 35, what is the maximum mass that can be pulled up at one time?

1 Answer
May 23, 2016

m<=350.11 " "kgm350.11 kg

Explanation:

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T>=m*g*sin alpha+u_k*m*g cos alphaTmgsinα+ukmgcosα

T=3200NT=3200N

U_k=3/5Uk=35

alpha=pi/8α=π8

T>=m(g*sin alpha +u_k*g*cos alpha)Tm(gsinα+ukgcosα)

m<=T/(g*sin alpha +u_k*g*cos alpha)mTgsinα+ukgcosα

m<=3200/(g(sin alpha+u_k cos alpha)m3200g(sinα+ukcosα)

m<=3200/(g(0.38+0.6*0.92))m3200g(0.38+0.60.92)

m<=3200/(9.14)m32009.14

m<=350.11 " "kgm350.11 kg