Question

What is the total mechanical energy of an object with a mass of 35 kilograms at rest at height of 75.3 meters?

Answer 1

Explanation:

total mechanical energy = potential energy+ kinetic energy

kinetic energy = 1/2 ( mv ^ 2)

since v = 0 so

kinetic energy = 0

potential energy = mgh

= 35*9.8* 75.3 = 25827.9 j

total energy = potential energy = 25827.9 j