Physics, 02.12.2020 15:30, brentkellen6331

A machine of efficiency of 70% is used to raise
a body of
mass 80 kg through
a vertical distance of 3m in
40 seconds. Calculate the power input. (Take g = 10 m/s²)

Answers: 3

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A machine of efficiency of 70% is used to raise
a body of
mass 80 kg through
a verti...