Posted by **roshna** on Friday, December 2, 2011 at 7:08am.

A neighbor pushes a lawn mower on a lawn that is level with a force of 230 Newtons. If 45% of this force is directed downward, how much work is done by the neighbor in pushing the mower 8 meters?

- physics -
**drwls**, Friday, December 2, 2011 at 9:05am
The force directed horizontally is not the remaining 55%, it is

sqrt[1 - (0.45)^2] = 89.3%,

which amounts to 205.4 Newtons.

Multiply that by 8 meters for the work done.

Note that Fx^2 + Fy^2 = Ftotal^2

## Answer This Question

## Related Questions

- physics - A man pushes a lawn mower on a level lawn with a force of 193 N. If 39...
- Physics - A man pushes a lawn mower on a level lawn with a force of 203 N. If 26...
- Physical science - A man pushes a lawn mower on a level lawn with a force of 192...
- Physics - A man pushes a lawn mower on a level lawn with a force of 200N it 40% ...
- Science - A man pushes a lawn mower on a level lawn with a force of 203 N. If 44...
- physics - A person pushes a 14.0-kg lawn mower at constant speed with a force of...
- Physics - A person pushes a 11.0 kg lawn mower at constant speed with a force of...
- physics - A person pushes a 17.0 kg lawn mower at constant speed with a force of...
- physics - forces - A person pushes a 16.0 kg lawn mower at constant speed with a...
- physics - A woman pushes a lawn mower with a con- stant force of 112 Newtons at ...

More Related Questions