Posted by **Jon** on Thursday, April 3, 2008 at 5:18pm.

A student lifts a 1.2 kg bag from her desk, which is 0.59 m high, to a locker that is 2.9 m high. What is the gravitational potential energy of the bag relative to the desk?

PE=mgh

1.2(9.80)(2.9)

= 34.1

- physics -
**Brandon**, Sunday, April 6, 2008 at 2:07pm
PE=mgh

=(1.2)(9.8)(2.9-.59)

= 27.17J

- physics -
**Paige**, Monday, February 18, 2013 at 12:18pm
A student lifts a 4.7-kg box from the her desk, which is 0.9-m high, to a locker that is 4.1-m high. What is the bags energy relative to the desk?

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