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A boy lifts a mass of 300g for 1.2 secon...

A boy lifts a mass of 300g for 1.2 second at height of 4m. What would be the power of boy? (Take `g=10ms^(-2)`).

A

`5W`

B

`10W`

C

`15W`

D

`20W`

Text Solution

Verified by Experts

The correct Answer is:
A
`P=(W)/(t)`
`=(mgh)/(t)`
`=((0.3kg)xx(10ms^(-2))xx(4m))/(1.2s)=10W`
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