Question

Calculate the potential energy of a 6kg bowling ball suspended 3m above the surface of the earth

Answer 1

Answer:  176.4 Joules

Explanation: Potential energy of a body is defined as the energy possessed by virtue of position.

Potential energy $=m\times g\times h$

m = mass of the body = 6 kg

g = acceleration due to gravity = $9.8 ms^{-2}$

h = height of body = 3 m

Potential energy $=6 kg\times 9.8ms^{-2}\times 3m=176.4kgm^2s^{-2}$

= 176.4Joules                 {$1kgm^2s^{-2}=1Joule$}