A 6.0-kg box rests on a lab bench. A young lady pushes it with a horizontal 50.0-N force. The box slides against an unknown horizontal friction force. The acceleration is 2.0 m/s2 a) Draw a free-body diagram carefully labeling all the forces. (Note that the velocity is not part of the free-body diagram, and need not be shown. It helps to show it, only so that the direction of the force of friction can be determined correctly.) b) Write out the equation of motion (that is, Newton’s Second Law, Fnet = ma), and solve for the friction force. c) If the young lady now abruptly stops pushing, in how much time will the box come to rest, if the

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: