Gravitational Potential Energy of a box

[kylepetten]

Homework Statement

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 = ?

Homework Equations

Eg = mgh

I think. haha

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.

 

[N-Gin]

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

 

[kylepetten]

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

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