A 3kg book is lifted to a height of 50cm above the ground
(a)by how much has the book's gravitational potential energy increased?
gravitational P.E change = M g H
= 3.0 kg*9.8 m/s^2* 0.50 m
= 14.7 Joules
(a)by how much has the book's gravitational potential energy increased?
= 3.0 kg*9.8 m/s^2* 0.50 m
= 14.7 Joules