Question

a machine is used to lift crates of oranges has an efficiency of 65%. if the machine provides 1300 newtons through a distance of 50 meters, what is the work output?

Answer 1

Given data

efficiency (η) = 65 %

= 0.65

Machine provides (Work done by the machine) = 1300 × 50

= 65000 J

efficiency (η) = work done by the machine ÷ work supplied to the machine

0.65 = 65000 ÷ Input work

Input work = 100000 J

= 100 KJ