a mechanical hammer does a work of 60 joule per strike calculate the power of the hammer in SI units if it strike some metal object at the rate of 20 strikes per minute
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20 strikes per minute
So, total work in a minute= 20×60
= 1200 J
power = work ÷ time
= 1200 ÷ 60
= 20 W
So, total work in a minute= 20×60
= 1200 J
power = work ÷ time
= 1200 ÷ 60
= 20 W
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