Question Detail

PHY 101 Rotational Motion Objective Question

Question

For a rigid object rotating about a fixed axis, the angular momentum L can be expressed in terms of its moment of inertia I and angular velocity ω as
Options
A L = I / ω
B L = Iω²
C L = ½ Iω²
D L = Iω
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

For a rigid object rotating about a fixed axis, the angular momentum is given by the product of its moment of inertia and its angular velocity: L = Iω. This is analogous to linear momentum p = mv.

Hint

This relationship is the rotational analog of p = mv, where I takes the place of mass and ω takes the place of velocity.

Question Info