Question
A machine efficiency 75% does 250j. Calculate the energy used in overcoming friction. [833.3j]
Answers
GPT 3.5
To calculate the energy used in overcoming friction, we need to know the total energy input to the machine and the energy output.
The total energy input to the machine can be calculated using the formula:
Total energy input = Energy output / Efficiency
In this case, the energy output is given as 250 J and the machine efficiency is 75% (or 0.75).
Total energy input = 250 J / 0.75 = 333.33 J
Now, we need to calculate the energy used in overcoming friction, which is the difference between the total energy input and the energy output:
Energy used in overcoming friction = Total energy input - Energy output
Energy used in overcoming friction = 333.33 J - 250 J
Energy used in overcoming friction = 83.33 J
Therefore, the energy used in overcoming friction is 83.33 J.
The total energy input to the machine can be calculated using the formula:
Total energy input = Energy output / Efficiency
In this case, the energy output is given as 250 J and the machine efficiency is 75% (or 0.75).
Total energy input = 250 J / 0.75 = 333.33 J
Now, we need to calculate the energy used in overcoming friction, which is the difference between the total energy input and the energy output:
Energy used in overcoming friction = Total energy input - Energy output
Energy used in overcoming friction = 333.33 J - 250 J
Energy used in overcoming friction = 83.33 J
Therefore, the energy used in overcoming friction is 83.33 J.