1. A force of 42 N is needed to start a box sliding across the floor. The weight of the box is 55 N. Draw all the forces acting on the box. a How large is the force of friction? F-fmax = 0 fmax=f fmax=42N + Answer b. Is the frictional force static or kinetic? The frictional force is static. f. What is the coefficient of friction? fy=0 fn-w-0 FN=W=55N uz=us x 55 us=0.764 + Answer

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