Efficiency = (output work / input work) * 100%
Efficiency = (800J / 2000J) * 100%
Efficiency = 0.4 * 100%
Efficiency = 40%
Therefore, the efficiency of the machine is 40%.
Calculate the efficiency of a machine that produces 800J of work for every 2000J of work placed into the machine, and show your work.
1 answer