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  • 06-05-2020
  • Physics
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A lawn mower engine running for 20 m i n does 4, 5 6 0, 0 0 0 J of work. What is the power output of the engine?

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nuuk nuuk
  • 07-05-2020

Answer:[tex]3800\ W[/tex]

Explanation:

Given

Lawn mover running for [tex]t=20\ min [/tex]

and does [tex]W=4560\times 10^3\ J[/tex]

We know Power is rate of work i.e.

[tex]P=\frac{\text{Work}}{\text{time}}[/tex]

[tex]P=\frac{4560\times 10^3}{20\times 60}[/tex]

[tex]P=3800\ W[/tex]

Thus Power output is [tex]3800\ W[/tex]

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