Question

You use an inclined plane to move furniture into a truck. You perform 105 kJ of work, but only do 88 kJ of useful work. What is the efficiency of the inclined plane?

Answer 1

\[efficienty=\frac{ measuredperformance }{ ideal performance }\]

Answer 2

The efficiency is:\[\frac{ 88kJ }{ 105kJ }=\]83.8%