The athlete lifted the barbell weighing 2000N to a height of 2m in 4 seconds. How much power did he develop with this?
| November 27, 2020 | education
Power is the ratio of the work done to the time during which the work was done.
N = A / t
A = mgh
A = 2000 N * 2m = 4000 J
N = 4000 J / 4s = 1000 W = 1 kW
Answer: 1 kW
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