If 1,200 J of work is done in pushing a trolley by 20m, What was the force (in N) employed?

Correct option is B

We can determine the force using the work-energy principle, which states:
Work = Force × Distance
Given:
· Work done (W) = 1,200 J
· Distance (d) = 20 m
· Force (F) = ?
Using the formula:
F = W/d
F = 1200/20
​F = 60 N