# Let's say a cart was rolling down a ramp. If the mass of the cart increases, why would the gravitational potential energy remain the same? This was explained in my Physics class, but I still do not understand.

Feb 14, 2018

$E = m g h$
where $m$ is mass, $g$ is acceleration of gravity, and $h$ is height. Mass is one of the three variables that affect gravitational potential energy.