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In a simple machine, the energy input is 120 J. If the efficiency of the machine is 80%, calculate the energy output

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TheAnimeGirl

Answer:

96 Joules

Explanation:

We know that efficiency is the ratio of output power by input power. i.e. Efficiency describes the quality of machine or system how good it is.

Solution,

Energy input of system = 120 J

Efficiency = 80% = [tex] \frac{80}{100} = 0.8[/tex]

Now,

According to definition,

Efficiency = [tex] \frac{output}{input} [/tex]

Cross multiplication:

[tex]output \: = \: 0.8 \times 120[/tex]

Calculate the product

[tex]output \: = 96 \: joules[/tex]

Hope this helps...

Good luck on your assignment...

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