- #1

J-dizzal

- 394

- 6

## Homework Statement

A machine carries a 4.0 kg package from an initial position of d

_{i}=0.6m##\hat i## + 0.7m##\hat j## + 0.26m##\hat k## at

*t*= 0 to a final position of d

_{f}= 11.5m##\hat i## + 14.0m##\hat j## + 10.2m##\hat k## at

*t*= 15.0 s. The constant force applied by the machine on the package is F= 10.9N##\hat i## + 13.25N##\hat j## + 9.94N##\hat k##. For that displacement, find

**(a)**the work done on the package by the machine's force and

**(b)**the average power of the machine's force on the package.

## Homework Equations

w=Fd

## The Attempt at a Solution

im attempting to use the dot product here to get work but not working, i don't know why[/B]