Potential energy is energy an object has because of its position relative to some other object. … For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

What is the unit for PE?

Potential energyCommon symbolsPE, U, or VSI unitjoule (J)Derivations from other quantitiesU = m ⋅ g ⋅ h (gravitational) U = 1⁄2 ⋅ k ⋅ x2 (elastic) U = 1⁄2 ⋅ C ⋅ V2 (electric) U = −m ⋅ B (magnetic) U =

What is MGH?

U=mgh. where U is the potential energy of the object relative to its being on the Earth’s surface, m is the mass of the object, g is the acceleration due to gravity, and h is the altitude of the object.