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

question 42

Multiple Choice

A 10-kg box is pushed up a plane inclined at 37º with the horizontal.The box starts from rest and is pushed 5 m along the incline with a uniform acceleration of 2 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

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