A 10-Kg Box Is Pushed Up a Plane Inclined at 37^o

question 33

Multiple Choice

A 10-kg box is pushed up a plane inclined at 37^o with the horizontal. The box starts from rest and is pushed 5.0 m along the incline with a uniform acceleration of 2.0 m/s². The coefficient of kinetic friction is 0.20 and the pushing force is parallel to the plane. The increase in the potential energy of the box is

• A) 0.10 kJ
• B) 0.29 kJ
• C) 0.36 kJ
• D) 0.46 kJ
• E) 0.39 kJ