1. A crane lifts a 75kg mass a height of 8 m. Calculate the gravitational potential energy

gained by the mass:

GP. E = 5880 j

Explanation:

Given dа ta:

Mass = 75 kg

height = 8 m

Potential energy = ?

Solution:

The formula for gravitational potential energy is

GPE = mgh

m = mass in kilogram

g = acceleration due to gravity

h = height in meter above the ground

Formula:

GP. E = mgh

Now we will put the values in formula.

g = 9.8 m/s²

GP. E = 75 Kg * 9.8 m/s² * 8 m

GP. E = 5880 Kg. m²/s²

Kg. m²/s² = j

GP. E = 5880 j