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An engine develops 20 kW of power. How m...

An engine develops 20 kW of power. How much time will it take to lift a mass of 400 kg to a height of 40 m? `(g=10 ms^(-2))`

A

`4s`

B

`5s`

C

`8s`

D

`10s`

Text Solution

Verified by Experts

The correct Answer is:
C
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