Physics, 30.03.2020 17:55, jasminemonae62

A box with a weight of 50 N rests on a horizontal surface. A person pulls horizontally on it with a force of 15 N and it does not move. To start it moving, a second person pulls vertically upward on the box. If the coefficient of static friction is 0.4, 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...