Multiple Choice
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 Fg is the magnitude of the force of gravity. Which of the following must be true?
A) P = f and N = Fg
B) P = f and N > Fg
C) P > f and N < Fg
D) P > f and N = Fg
E) none of these
Correct Answer:

Verified
Correct Answer:
Verified
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