# Homework Help: Gravitational Potential Energy of a box

1. Feb 12, 2010

### kylepetten

1. The problem statement, all variables and given/known data

a 18.5 kg box is slid up a 5.6 m long ramp that makes an angle of 33 degrees with the floor. What is the gravitational potential energy of the box relative to the floor?

m = 18.5 kg
d = 5.6 m
http://musr.physics.ubc.ca/~jess/symbols/Theta.gif = 33°
PEg = ?

2. Relevant equations

Eg = mgh

I think. haha

3. The attempt at a solution

I have absolutely no idea. I am hoping someone on here could get me started with this question, not give me the answer, but just get me started. Thanks.

Last edited by a moderator: Apr 24, 2017
2. Feb 12, 2010

### N-Gin

You are right about $$E_{gp}=mgh$$. Height $$h$$ is the only problem and it can easily be obtained by using trigonometry.

3. Feb 12, 2010

### kylepetten

Ahh, silly me! Thank you very much! Have a nice day :)