Agirl lifts a 100 n load to a height of 2.0 m in 0.5 sec. what power does the girl produce?

The power produced by the girl is 400 watts.

Explanation-

According to the question, load (w) = 100N

                                           Height, h = 2.0m

                                     Time taken, t =  0.5 sec

Mathematically, Power = Work done/ Time taken

Work( W) = Force × Distance    

               =  Load × Height

               = 100 × 2.0 = 200 Joules

Putting the value of work and time in the formula of power, we get-

Power = 200Joule /0.5 sec  

           = 400 watts

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