A 10-Kg Box Is at the Top of a 5-M

Multiple Choice

A 10-kg box is at the top of a 5-m plane inclined at 37º with the horizontal.The box starts from rest and slides down the plane.The coefficient of kinetic friction is 0.20.The magnitude of the change in the potential energy of the box is

A) 30 kJ
B) 0.10 kJ
C) 0.29 kJ
D) 0.46 kJ
E) 0.39 kJ