Homework Answers
Solution :-
Due to the box 3 over the pulley, the upward force on box 2 is
the weight of box 3. The normal force exerted on box 1 by the table
is therefore the weight of box 1 plus the difference of weights of
box 2 and 3.
F = W1+W2-W3
F = 55 + 35- 28
F = 62 N
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