Two builders carry a sheet of drywall up a ramp. Suppose that W = 2 m, L = 3.10 m, theta = 23 degree, and that the lead builder carries a (vertical) weight of 181 Newton (40.7 lb). Obtain the weight carried by the builder at the rear?
The builder at the rear gets tired and suggests that the drywall should be held by its narrow side. Calculate the weight (in N) he must now carry?