M*g*H to both questions.
You should make an effort to answer these problems by yourself.
A box with a mass of 2 kg is lifted (without acceleration) through a height of 8.0 m in order to place it upon the shelf of a closet.
(a) What is the increase in potential energy of the box?
1 . J
(b) How much work was required to lift the box to this position?
2 J
3 answers
4
8
8
2j
1j
1j
6 answers