APFIVE Work Done by Gravitational Force
A 3 kg block slides down a frictionless incline with a height of 4 meters, then up a second frictionless incline to a height of 2 meters, and finally horizontally along a rough surface until stopping. What is the work done by the gravitational force on the block from its initial to final position?
A
-58.8 J
B
0 J
C
58.8 J
D
117.6 J
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