Determine the amount of potential energy of a 5.0Kg book that is moved to three different shelves on a bookcase. The height of each shelf is 1.0 m, 1.5 m, and 2.0 m.

Formula to find gravitational potential energy:

mgh

m: mass

g: gravitational acceleration

h: height (relative to reference level)

so the P. E. at 1.0. m is (5x9.8x1) = 49J

P. E. at 1.5m is (5x9.8x1.5) = 73.5J

P. E. at 2.0m is (5x9.8x2) = 98J