How many times is the potential energy of an airplane flying at an altitude of 10 km at a speed of 360 km / h. More than kinetic energy.

univerkov | December 3, 2020 | education

Given:
h = 10 km = 10000m
V = 360 km / h = 100 m / s
g = 10 m / s ^ 2
Find: Ep / Ek -?
Decision:
Ek = m * V ^ 2/2 Ep = mgh
En / Ek = (2mgh) / (m * V ^ 2) = (2gh) / (V ^ 2) = (2 * 10 * 10000) / (100 ^ 2) = 20
Answer: 20 times.

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