A box has a weight of 150 N and is being pulled across a
Chapter 4, Problem 4.52(choose chapter or problem)
A box has a weight of 150 N and is being pulled across a horizontal floor by a force that has a magnitude of 110 N. The pulling force can point horizontally, or it can point above the horizontal at an angle . When the pulling force points horizontally, the kinetic frictional force acting on the box is twice as large as when the pulling force points at the angle . Find . 17
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