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The angular velocity of a body is stack omega with rightwards arrow on top equals 2 stack i with hat on top plus 3 stack j with hat on top plus 4 stack k with hat on top and a torque stack tau with rightwards arrow on top equals stack i with hat on top plus 2 stack j with hat on top plus 3 stack k with hat on top acts on it. The rotational power will be-

  1. 20 watt  
  2. 15 watt  
  3. square root of 17 watt  
  4. square root of 14 watt  

The correct answer is: 20 watt

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