If an effort of 60 Newton is needed to lift a load of 150 with is a three pulley system. what is the efficiency of this machine?

1 answer

To determine the efficiency of the machine, we first need to calculate the work input and work output.

Work Input = Force * Distance
Work Input = 60 N * d

Work Output = Load * Distance
Work Output = 150 N * d

Efficiency = (Work Output / Work Input) * 100%
Efficiency = (150d / 60d) * 100%
Efficiency = 2.5 * 100%
Efficiency = 250%

Therefore, the efficiency of this machine is 250%. This means that the machine is able to lift the load with 250% efficiency, which is very high.