A boy pulls a wooden box along a rough horizontal floor at constant speed by means of a force as shown. In the diagram f is the magnitude of the force of friction, N is the magnitude of the normal force, and F_gis the magnitude of the force of gravity. Which of the following must be true? A) P = f and N = F_g B) P = f and N F_g C) P f and N f and N = F_g E) none of these

Question

A boy pulls a wooden box along a rough horizontal floor at constant speed by means of a force as shown. In the diagram f is the magnitude of the force of friction, N is the magnitude of the normal force, and F_gis the magnitude of the force of gravity. Which of the following must be true? A) P = f and N = F_g B) P = f and N > F_g C) P > f and N < F_g D) P > f and N = F_g E) none of these

Quizplus · Accepted Answer

The Answer is A

A Boy Pulls a Wooden Box Along a Rough Horizontal