Question

The same book is placed on a table .9m high. What type of energy does it have and how much?

Answer 1

mass (m)= 5 kg

height (h)= 9m

gravity (g)= 9.8 m/s^2

It has Potential energy. (PE)

• PE = mgh

Replacing:

PE = 5 * 9.8 * 9 = 441 Joules