Question Number 103739 by aurpeyz last updated on 17/Jul/20

Answered by Rio Michael last updated on 17/Jul/20

 at limiting equilibrium, F_f   + mg sin θ = P   but F_f  = Nμ  but N = mg cos θ = (163.5)cos 14.5 = 158.29 to the nearest   100^(th)  = 200 N  ⇒F_f  = 200 × 0.6 =120 N  ⇒ P = 120 + 163.5 sin 14.5 = 161 N