Physics, 16.01.2020 20:31 annetteaudc

A66.5-kg hiker starts at an elevation of 1270 m and climbs to the top of a peak 2660 m high.
(a) what is the hiker? s change in potential energy?
(b) what is the minimum work required of the hiker?
(c) can the actual work done be greater than this? explain.

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A66.5-kg hiker starts at an elevation of 1270 m and climbs to the top of a peak 2660 m high.
(...