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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?

Respuesta :

Histrionicus

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

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