A 600 Kg Box Is Pulled Up an 8

A 6.00 kg box is pulled up an 8.00 m long incline (with friction) at an angle of 30.0 degrees by a force of 50.0 N parallel to the incline. The coefficient of kinetic friction is 0.100. The work done against friction is

A) 22.0 J.
B) 26.5 J.
C) 30.3 J.
D) 35.2 J.
E) 40.7 J.

Correct Answer:

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