Question Detail

PHY 101 Rotational Motion Objective Question
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Question

Newton's second law for rotation states that the net torque on a rigid object is equal to the product of its
Options
A mass and linear acceleration.
B moment of inertia and angular acceleration.
Correct Answer
C angular momentum and angular velocity.
D force and lever arm.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The rotational analog of Newton's second law (∑F = ma) is ∑τ = Iα. It states that the net torque acting on a body is equal to the product of its moment of inertia (I) and its angular acceleration (α).

Hint

In linear motion, force causes linear acceleration (F = ma). In rotation, torque causes angular acceleration. What quantity plays the role of mass in rotation?

Question Info

Course: PHY 101
Topic: Rotational Motion
Type: Objective
Difficulty: Not specified
Question 759 of 1250
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