A horizontal force of 750 N is needed to overcome the force of static friction between a level floor and a 250-kg crate.What is the acceleration of the crate if the 750-N force is maintained after the crate begins to move and the coefficient of kinetic friction is 0.16? A) 1.8 m/s² B) 1.4 m/s² C) 3.0 m/s² D) 2.1 m/s²

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Quizplus · Accepted Answer

The net force after overcoming static friction is the applied force minus the kinetic friction force. The kinetic friction force is calculated as the coefficient of kinetic friction (0.16) times the normal force (which is the weight of the crate, 250 kg * 9.8 m/s²). The net force is then used to find acceleration using Newton's second law (F = ma).

A Horizontal Force of 750 N Is Needed to Overcome