R2-1. Blocks A and B weigh 50 and 10 lb, respectively. If
Chapter 21, Problem R2-1(choose chapter or problem)
Blocks A and B weigh 50 and 10 lb, respectively. If P = 100 lb, determine the normal force exerted by block A on block B. Neglect friction and the weights of the pulleys, cord, and bars of the triangular frame.
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