Answer:
129.9 m
Explanation:
Efficiency is the ratio of work output to work input, expressed as a percentage.
[tex]Efficiency= \frac {W_{out}}{W_{in}}[/tex]
We know that work= mgh hence to get the work input
[tex]W_{in}= \frac {58\times 9.81\times 3}{0.73}=2338.273973 J[/tex]
Work done by applied force=Fd
Fd=2338.273973 J
we have d as 18 m hence [tex]F=\frac {2338.273973 J}{18}=129.9041096 m\approx 129.9 m[/tex]
