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A 16-Kg Block Slides Down a Plane (Inclined at 25° with with the Horizontal)

Question 19

Multiple Choice

A 1.6-kg block slides down a plane (inclined at 25° with the horizontal) at a constant speed of 2.0 m/s. At what rate is the frictional force changing the mechanical energy of the block?


A) +28 W
B) +13 W
C) −13 W
D) −28 W
E) +6.5 W

Correct Answer:

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