An 77-kg hiker climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0-h period?
An 77-kg hiker climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0-h period, the climber's vertical elevation increases 540 m.
Determine the change in gravitational potential energy of the climber-Earth system.
Determine the power of the process needed to increase the gravitational energy.
- TechnobuffLv 76 years agoFavorite Answer
It's "a" 77 kg....!
Climb time = (2h x 3600s) = 7200 secs.
Height gain = 540 metres.
Work done = (mgh) = (77 x 9.8 x 540) = 407,484 Joules of GPE gained.
The power = (407,484/7,200 secs) = 56.595 Watts.
- Anonymous4 years ago
Mount Mitchell ElevationSource(s): https://shrink.im/a0dMU