Answer:
<em>For distance of 9 meters, work done is 360 Nm and for three times of that distance, work done is 1080 Nm.</em>
Step-by-step explanation:
<u>Formula for work done</u> is:
, where
Force and
Distance.
Now a force of 40 newtons moves a cart a distance of 9 meters. That means here,
and 
So, the work done will be:
Nm.
If the same force moves the same cart three times that distance, then
and 
So, the work done will be:
Nm.