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A 7.5 kg box initially at rest on a horizontal surface is pushed by a
constant force of 34.2 N that is applied at angle 35.6° below the
horizontal. As the box accelerates along the surface, it encounters a
frictional force of 16.6 N. Using work-energy theorem, what is the
speed of the box after it has traveled 4.75 m?
vf
Vi = 0
-d-
O 7.50 m/s
5.93 m/s
O 3.77 m/s
4.72 m/s
m

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