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Two builders carry a sheet of drywall up a ramp.
Assume that W = 2.10 m, L = 3.20 m, 0 = 25.0°, and
that the lead builder carries a (vertical) weight of
187.0 N (42.0 lb). What is the (vertical) weight carried
by the builder at the rear?
The builder at the rear gets tired and suggest that
the drywall should be held by its narrow side. What
is the weight (in N) he must now carry?

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