Answer:
Step-by-step explanation:
A machine's efficiency is a measure of how much of its input energy is turned into usable output. The following formula is used to calculate a machine's efficiency:
(Output Work / Input Work) x 100% = Efficiency
The output work in this situation is the work done by the machine to draw the bucket of water, and the input work is the effort exerted by the person running the machine.
Work produced = Force x Distance
Distance = the distance traveled by the bucket = 50 liters
As a result, the output work = 250 N x 50 L = 12500 J. (Joules)
Work input = effort x distance
Distance = the distance over which effort is exerted = 5 pulleys
So the input work is 250 N multiplied by 5 pulleys is 1250 N.
(Output Work / Input Work) x 100% = Efficiency
(12500 J / 1250 J) x 100% = Efficiency
10 × 100% Equals 1000% efficiency
It should be noted that the efficiency is expressed as a percentage and should be less than 100%. However, in this example, the answer is 1000%, which is implausible.
This might be because of an error in the input data or a misunderstanding of the situation.