...A 0.16 kg ball

Question

A 0.16 kg ball is about to roll off the edge of a 12.89 m high table. What is its current PE?

Answer 1

PE = mgh

m = 0.16kg

g = 9.8m/s2 (acceleration caused by gravity)

h = 12.89m

PE = 20.2J

Joules is the correct unit for PE when kilogram, meters, and seconds are used