A 200 Kg Box Slides Down a 12

question 52

Multiple Choice

A 20.0 kg box slides down a 12.0 m long incline at an angle of 3.0 degrees with the horizontal. A force of 50.0 N is applied to the box to try to prevent it from sliding down the incline. The applied force makes an angle of 0.00 degrees to the incline. If the incline has a coefficient of kinetic friction of 0.100, then the increase in the kinetic energy of the box is

• A) 300 J.
• B) 372 J.
• C) 410 J.
• D) 455 J.
• E) 525 J.