Question

A sled is at rest at the top of a 2 m high slope. The sled has a mass of 45 kg. The sled's potential energy is

Answer 1

PE = mgh = (45)(9.81)(2) J
PE = 882.9 Joules

Answer 2

We have to apply potential energy formula:

`P.E = mgh`

where m is the measure of mass, g is gravitational acceleration which is always fixed and h indicates height. Plugging the data into formula, we find that:

`P.E=mgh=45*9.8*2=882 Joules`