- #1

chinnie15

- 29

- 0

## Homework Statement

Suppose you lift a 23kg box by a height of 1.0m. How much work do you do in lifting the box?

**230 J**

Instead of lifting the box straight up, suppose you push it up a 1.0 -high ramp that makes a 30 degree angle with the horizontal. Being clever, you choose a ramp with no friction. How much force is required to push the box straight up the slope at a constant speed?

**113N**

How long is the ramp?

**2m**

Use your force and distance results to calculate the work you do in pushing the box up the ramp.

*This is where I'm having trouble!*

## Homework Equations

W=Fdcosθ

## The Attempt at a Solution

I plugged what I already got into the above equation, and got the answer of 195J. However, it's telling me the answer is 230J? But how? Isn't that why they had me find F and d?

Thank you for any help!