Answer:
The efficiency formula is given by:
Efficiency= Input Work/Output Work
In our case, output work is the work done against the load, and input work is the work done by the effort.
So, we have:
0.80= Load×Distance/Effort×Distance
Given load = 60N and effort = 40N, we can simplify to get the ratio of the distance:
0.80=60/40=1.5
