Question

A 3 kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat’s gravitational potential energy relative to the floor? ____ Joules

Answer 1

We have: Gravitational Potential Energy (U) = mgh
Here, m = 3 Kg
g = 9.8 m/s² [ constant value for earth system ]
h = 3 m

Substitute their values into the expression:
U = 3 × 9.8 × 3
U = 88.2 J

In short, Your Answer would be 88.2 Joules.

Hope this helps!