Question

A simple machine produces 25 joules of output work for every 50 joules of input work. What is the efficiency of this machine?.

Answer 1

Answer:
The efficiency of the machine is 50%

Step-by-step explanation:
The efficiency of a machine is defined as the ratio of the output work to the input work, expressed as a percentage. Therefore, we can calculate the efficiency of the given machine using the formula:

Efficiency = (Output Work / Input Work) x 100%

We are given that the machine produces 25 joules of output work for every 50 joules of input work. Therefore, the efficiency of the machine is:

Efficiency = (25 / 50) x 100% = 0.5 x 100% = 50%

So the efficiency of this machine is 50%. This means that only half of the input work is converted into useful output work, while the other half is lost as heat, friction, or other forms of energy loss.