- #1

- 51

- 0

## Homework Statement

A man pushes an 80 N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 30° with the horizontal. The force he exerts is parallel to the slope. If the speed of the crate is constant, then the work done by the man is:

a) 61 J

b) 200 J

c) 140 J

d) -200 J

## Homework Equations

F=ma

## The Attempt at a Solution

I used sin 30 = y/50, so y (the height of the slope) equals 2.5. I don't know what to do from here.