Which of the following factors does NOT affect the moment of inertia of a plane lamina?
-
A.
The axis about which it is rotating
-
B.
The angular velocity of rotation
-
C.
The shape and size of the body
-
D.
The mass of the body
Correct Answer:
B. The angular velocity of rotation
Explanation:
The correct answer is The angular velocity of rotation.
The moment of inertia of a plane lamina depends on its total mass, its physical dimensions (shape and size), and the specific axis chosen for rotation. It represents a body's resistance to rotational acceleration, similar to how mass represents resistance to linear acceleration. However, unlike kinetic energy or torque, the moment of inertia itself is an intrinsic property based on mass distribution relative to an axis and does not change regardless of how fast the object is spinning (angular velocity). Therefore, the angular velocity of rotation has no impact on the value of the moment of inertia.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.