A box with a weight of 50 N rests on a horizontal surface. A person pulls horizontally on it with a force of 10 N and it does not move. A second person helps by pulling vertically upward on the box. If the coefficient of static friction is 0.40, what is the smallest vertical force for which the box moves?
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A box with a weight of 50 N rests on a horizontal surface. A person pulls horizontally on it with a...
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