The lowest point in Death Valley is 75.5 m below the sea level. The summit of nearby Mt. Whitney has an elevation of 4360 m. Wha

Question

2 years ago

11

t is the change in potential energy of an energetic 63 kg hiker who makes it from the floor of Death Valley to the top of Mt. Whitney?

1 answer:

sineoko [7] · Answer 1 · 2022-08-26T12:52:38+03:00

8 0

Answer:2738.477 kJ

Explanation:

Given

Lowest Point of death valley is 75.5 m below sea level

Height of Mt. Whitney is 4360 m

mass of hiker =63 kg

Change in potential energy $=m\times g\times (h_2-h_1)$

Considering sea level a datum

$\delta PE=63\times 9.8\times (4360-(-75.5))=2738477.7 J$

$\delta PE=2738.477 kJ$