5. It takes 40 J to push a large box 4 m across a floor. Assuming the push is in the same direction as the move, what is the magnitude of the force on the box?
a. 4N
b. 10 N
C. 40 N
d. 160 N
a. 4N
b. 10 N
C. 40 N
d. 160 N
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The work done by an object exerting a force F at a distance d is given by
where:
W = work
F = force
d = distance
Solving for F
W = Fd
Therefore, the answer is b. 10 N