Question

Question #58f77

Answer 1

The work done in moving something through a distance under a force is given by `W=Fd`. First find the distance traveled, then use that to find the work done.

The solution is `W=8.72i+4.36j-4.36k` arbitrary units (if `d` was in `m` it would be `J`)

Explanation:

Distance traveled is given by:

`d=sqrt((3-2)^2+(2-(-1))^2+((-2)-1)^2)`
`=sqrt(1^2+3^2+-3^2)=sqrt(1+9+9)=sqrt19~~4.36` units

Then `W=fd=(2i+j-k)*4.36=8.72i+4.36j-4.36k`