A weightlifter lifts a 1,250-N barbell 2 m in 3 s. How much power was used to lift the barbell?

1 Answer
Steve J.
Mar 1, 2018

#"Power" = 833 "Watts"#

Explanation:

The force required to lift it was 1,250 N. The amount of work done was #F*d = 1,250 N*2 m = 2,500 J#.

The power used was #"the work"/"the time spent"#.

#"Power" = (2,500 J)/(3 s) = 833 "Watts"#

I hope this helps,
Steve

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