## anonymous one year ago A man pulls a 50.0 kg box with a rope parallel to the ground. He pulls the box 10.0 m. About how much work has he done? 5 J , 0.2 J , 5000J , or 500 J ?

1. perl

$$\rm Work = F \cos \theta ~\Delta x$$ but here theta = 0 , so the equation simplifies to Work = Force * distance The force here is due to weight, weight = mass * gravity work = (50 kg * 9.8 ) * 10 meters

2. Michele_Laino

that's right! @perl

3. anonymous

so 4900? so approximately 5000 J is our solution?

4. perl

correct

5. anonymous

yay!! thanks!!