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The angular velocity of a body is vec(om...

The angular velocity of a body is `vec(omega)=2hati+3hatj+4hatk` and a torque `vec(tau)=hati+2hatj+3hatk` acts on it. The rotational power will be

A

20 W

B

15 W

C

`sqrt(17)W`

D

`sqrt(14)W`

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The correct Answer is:
A
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