What is the gravitational potential energy of the box relative to the floor?

AI Thread Summary
To find the gravitational potential energy of an 18.5kg box on a 5.6m ramp at a 33-degree angle, the relevant formula is Eg = mgh. The mass (m) is 18.5kg and gravitational acceleration (g) is approximately 9.81 m/s². The height (h) can be calculated using the sine of the angle, where h = 5.6m * sin(33°). The initial answer provided was 550J, but the correct calculation requires determining the height first. Properly calculating h will confirm the gravitational potential energy relative to the floor.
nicolehoskins
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Homework Statement


An 18.5kg box is slid up a 5.6m 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?

Homework Equations


Ek = 1/2mv2

The Attempt at a Solution


My teacher gave me an answer of 550J, but I'm not sure how to show my work
 
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Welcome to PF!

What determines the amount of gravitational potential energy of an object? You wrote an equation for kinetic energy, but that is not relevant here.
 
nicolehoskins said:

Homework Statement


An 18.5kg box is slid up a 5.6m 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?

Homework Equations


Ek = 1/2mv2

The Attempt at a Solution


My teacher gave me an answer of 550J, but I'm not sure how to show my work
Well, you can type it into the reply box. If you need to use special math symbols or Greek letters, you can hit the big ∑ button on the reply box toolbar or use Latex.
 
TSny said:
Welcome to PF!

What determines the amount of gravitational potential energy of an object? You wrote an equation for kinetic energy, but that is not relevant here.

Whoops, I meant Eg = mgh
 
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Ok so m and g are easy. All you need to do is calculate h.
 

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