Skills for analyzing processes using the work-energy principle
A 500-m-long ski slope drops at an angle of 6.4° relative to the horizontal. (a) Determine the change in gravitational potential energy of a 60-kg skier-Earth system when the skier goes down this slope. (b) If 20% of the gravitational potential energy change is converted into kinetic energy, how fast is the skier traveling at the bottom of the slope?
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