The worker uses the hand truck to move material down the ramp. If the truck and its contents are held in the position shown and have weight W with center of gravity at G, determine the resultant normal force of both wheels on the ground A and the magnitude of the force required at the grip B.

Given:

W = 100 lb      e = 1.5 ft

a = 1 ft            f = 0.5 ft

b = 1.5 ft         θ = 60 deg

c = 2 ft            ϕ = 30 deg

d = 1.75 ft

FB (90-0) (90-8) e+f (0-0) NA