A Wheel Rotating About a Fixed Axis Has an Angular $\theta$

question 36

Multiple Choice

A wheel rotating about a fixed axis has an angular position given by $\theta$ = 3.0 -2.0t³,where $\theta$ is measured in radians and t in seconds.What is the angular acceleration of the wheel at t = 2.0 s?

• A)-1.0 rad/s²
• B)-24 rad/s²
• C)-2.0 rad/s²
• D)-4.0 rad/s²
• E)-3.5 rad/s²

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Definitions:

Otorhinolaryngology

A surgical subspecialty within medicine that deals with conditions of the ear, nose, and throat (ENT) and related structures of the head and neck.

Fenestration

A surgical procedure that creates a new opening, especially used in reference to procedures involving the ear to improve hearing.

Incus

A small anvil-shaped bone in the middle ear that, along with the malleus and stapes, helps transmit sound vibrations to the inner ear.

Auricle

The external portion of the ear that directs sound waves into the ear canal.