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A teacher pushed a 98 newton desk across a floor for a distance of 5 meters. He exerted a horizontal force of 20 N for four seconds. What was his power?
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27 votes
27 votes
A teacher pushed a 98 newton desk across a floor for a distance of 5 meters. He exerted a horizontal force of 20 N for four seconds. What was his power?

User Allkenang
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3.0k points

1 Answer

11 votes
11 votes

Answer:

First let's find the work.

Work = Force*Displacement

= 20*5

= 100 Joules

Power = Work/Time

= 100/4

= 25 Watts

User Vikramaditya Gaonkar
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3.3k points
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