Solve Prob. 4.87 assuming that the slope of the incline is 18° downward. Problem 4.87: The total weight of a wheelbarrow filled with gravel is 120 lb. If the wheelbarrow is held on an 18° incline in the position shown, determine the magnitude and direction of

(a) The force exerted by the worker on each handle,

(b) The reaction at C.

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