Question

A 1.00 kg laptop is lifted from the ground and placed on a desk. The desktop is 2.2 meters above the ground. How much work is done to lift the laptop? Is this different from the potential energy of the laptop on the desktop?

Answer 1

$$W=mgh\\W=(1)(9.8)(2.2)=21.56\ J$$

It is the same as the potential energy of the laptop on the desktop.