A DVD is rotating with an ever increasing speed. How do the angular velocity, an
ID: 1427842 • Letter: A
Question
A DVD is rotating with an ever increasing speed. How do the angular velocity, angular acceleration, tangential velocity, and tangential acceleration compare at points P and Q?
A) Points P and Q have the same tangential velocity and the same tangential acceleration.
Points P and Q have the same angular velocity and the same angular acceleration.
Points P and Q have the same angular velocity but point Q has a larger angular acceleration.
Point Q has a larger tangential acceleration but points P and Q have the same tangential velocity.
Angular velocity, angular acceleration, tangential velocity, and tangential acceleration are larger for point Q than for point P.
A) Points P and Q have the same tangential velocity and the same tangential acceleration.
B)Points P and Q have the same angular velocity and the same angular acceleration.
C)Points P and Q have the same angular velocity but point Q has a larger angular acceleration.
D)Point Q has a larger tangential acceleration but points P and Q have the same tangential velocity.
E)Angular velocity, angular acceleration, tangential velocity, and tangential acceleration are larger for point Q than for point P.
Explanation / Answer
The angular velocity and angular acceleration is same for all points on a rotating disk. so Points P and Q have the same angular velocity and the same angular acceleration. so option B is correct.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.