29. (II) A 66.5-kg hiker starts at an elevation of 1270 m

Last updated: 7/9/2022

29. (II) A 66.5-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.