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

Explanation

To find the rotational power given the angular velocity and torque, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Given Vectors**:
- Angular velocity vector:
\[
\vec{\omega} = 2\hat{i} + 3\hat{j} + 4\hat{k}
...