# What is the gravitational potential energy of a  14 kg object on a shelf  5/6 m  high?

Dec 10, 2015

The potential gravitational energy will be $\text{110 J}$.

#### Explanation:

$\text{PE"_"grav} = m \cdot g \cdot h$, where $m$ is mass in kg, $g$ is $\text{9.81 m/s"^2}$, and $h$ is the height.

Given/Known
$m = \text{14 kg}$
$g = \text{9.81 m/s"^2}$
$h = \text{5/6m}$

Solution
Substitute the given and known values into the equation and solve.

$\text{PE"_"grav"=14"kg"xx9.81"m/s"^2xx5/6m}$

$\text{PE"_"grav"="110 J}$ (rounded to two significant figures)