Discussion
The product of body's rotational inertia and angular velocity is ....... .
Answer: C
The product is angular momentum.
Angular momentum is the rotational counterpart of linear momentum (mass × velocity):
\[ L = I\omega \]
where I is the moment of inertia and ω the angular velocity. In flight it is conserved, which is why a diver or gymnast who tucks (smaller I) spins faster.
Angular velocity is one of the two factors, not the product. Angular acceleration is the rate of change of angular velocity, and 'angular projection' is not a standard mechanical quantity.
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