Moment of inertia is the ratio of:
Correct answer: D. angular momentum and omega
- A. mass and velocity
- B. momentum and omega
- C. momentum and acceleration
- D. angular momentum and omega
Explanation
The moment of inertia (I) is defined as the ratio of angular momentum (L) to angular velocity (ω), mathematically expressed as I=L/ω . Angular momentum is the product of mass, linear velocity, and the perpendicular distance from the axis of rotation (L = mvr), and ω represents angular velocity.
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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