A 200 Kg Box Slides Down a 12

question 65

Multiple Choice

A 20.0 kg box slides down a 12.0 m long incline at an angle of 30.0 degrees with the horizontal.A force of 50.0 N is applied to the box in the upward direction.The applied force F makes an angle of 0.00 to the incline.If the incline has a coefficient of kinetic friction of 0.000,then the increase in the kinetic energy of the box is

• A) 620 J.
• B) 576 J.
• C) 542 J.
• D) 500 J.
• E) 475 J.

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