A 61.0 kg skier is at the top of a slope, as shown in the figure. At the initial

Question

A 61.0 kg skier is at the top of a slope, as shown in the figure. At the initial point she is 12.0 m vertically above point . Setting the zero level for gravitational potential energy at find the gravitational potential energy of this system when the skier is at and then at . Finally, find the change in potential energy of the skier-Earth system as the skier goes from point to point . Repeat this problem with the zero-level at point . Repeat again, with the zero-level 2.00 m higher than point . Use the values to help you work this exercise. If the zero level for the gravitational potential energy is selected to be midway down the slope, 6.00 m above point , find the initial potential energy, the final potential energy, and the change in potential energy as the skier goes from point to in the figure.

Explanation / Answer

The answer above is correct. you have the units wrong.

initial = 3.5868 kilojoules

final = -3.5868 kilojoules

change = -7.1736 kilojoules

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