Potential gravitational energy is computed with the formula:
[tex]PEgrav=mgh[/tex]
Where: PEgrav = Potential gravitation energy (J) m = mass (kg) h = height (m) g = acceleration due to gravity (9.8m/s^2)
Take note that acceleration due to gravity is a constant.
All you need to do is put in what you know and solve for what you don't know. So your given is the following: PEgrav = 3,528J m = 24 kg g = 9.8 m/s^2 Put that into your formula: [tex]PEgrav=mgh[/tex] [tex]3,528J = (24kg)(9.8m/s^{2})(h)[/tex] [tex]3,528J = (235.2kg.m/s^{2})(h)[/tex] [tex]\frac{3,528J}{235.2kg.m/s^{2}} = h[/tex] [tex]15m=h[/tex]