Gravitational Potential Energy of a box

AI Thread Summary
To calculate the gravitational potential energy (PEg) of an 18.5 kg box on a 5.6 m ramp at a 33-degree angle, the formula PEg = mgh is used. The height (h) can be determined using trigonometry, specifically by calculating the vertical component of the ramp's length. The discussion emphasizes understanding the relationship between mass, height, and gravitational potential energy without providing a direct answer. Participants encourage problem-solving techniques rather than simply giving solutions. This approach fosters learning and comprehension of the underlying physics concepts.
kylepetten
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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.
 
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You are right about E_{gp}=mgh. Height h is the only problem and it can easily be obtained by using trigonometry.
 
N-Gin said:
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 :)
 

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