Question: A 50-kg box that is resting on a level floor must be moved. The coefficient of static friction between the box and the floor is

A 50-kg box that is resting on a level floor must be moved. The coefficient of static friction between the box and the floor is 0.6. One way to move the box is to push down on it at an angle θ with the horizontal. Another method is to pull up on the box at an angle θ with the horizontal.

(a) Explain why one method is better than the other.

(b) Calculate the force necessary to move the box by each method if θ = 30° and compare the answer with the results when θ = 0°.

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