Question

A mailman performed 180 J of work lifting a box 0.8 m. How much force did the mailman use?

Answer 1

the amount of force would equal 225 N
since W = F x d

Answer 2

The mailman used a force of 225N.

Explanation:

The work formula is given by:

`W = F*l`

In which W is the work, F is the force and l is the length of the object.

In this problem, we have that:

A mailman performed 180 J of work lifting a box 0.8 m. This means that
`W = 180, d = 0.8`. So

`W = F*l`

`180= F*0.8`

`F = (180)/(0.8)`

`F = 225`

The mailman used a force of 225N.