# What is the gravitational potential energy of a  7 kg object on a shelf  1/2 m  high?

Mar 22, 2018

$34.3 \setminus \text{J}$

#### Explanation:

We find the gravitational potential energy by the equation, $\text{GPE} = m g h$.

So here,

$\text{GPE"=7 \ "kg"*9.8 \ "m/s"^2*1/2 \ "m}$

$= 34.3 \setminus \text{J}$

Note that I have used the gravitational acceleration, $g = 9.8 \setminus {\text{m/s}}^{2}$.