Note that:
The gravitational potential energy = [tex]mgh[/tex]
where m: is the mass, g: the acceleration due to the gravity and h is the height from the earth surface
Then, we can increase the gravitational potential energy by increasing the mass or the height from the earth surface
In our question, we can increase the gravitational potential energy by
A) Strap a boulder to the car so that it wights more.
