The three stone blocks have weights WA, WB, and WC. Determine the smallest horizontal force P that

Question:

The three stone blocks have weights WA, WB, and WC. Determine the smallest horizontal force P that must be applied to block C in order to move this block. The coefficient of static friction between the blocks is μs, and between the floor and each block μs.

Given:

WA = 600 lb

WB = 150 lb

WC = 500 lb

μ s = 0.3

μ's = 0.5

θ = 45 deg

B. Wc WA WB B 4,(WA + WB +WC) (WA+ WB+WC)