6. a) A block of A box of mass 2-kg is being pushed up along the plane as shown. What is the work done by gravity on the box if it moves 1.5 m up along the plane? Ans: -7.6 J box b) If a coefficient of kinetic friction between the plane and the box in is 0.3, what is the work done by the friction on the box? 15.0
6. a) A block of A box of mass 2-kg is being pushed up along the plane as shown. What is the work done by gravity on the box if it moves 1.5 m up along the plane? Ans: -7.6 J box b) If a coefficient of kinetic friction between the plane and the box in is 0.3, what is the work done by the friction on the box? 15.0
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