Angular acceleration is measured in radians per second per:
ASample
BSegment
CSector
DSecond
Answer & Solution
Correct answer: D. Second
1. It measures how fast angular velocity itself changes.
2. That adds a second division by time.
3. So the units are radians per second per second.
_Source: OpenStax University Physics Volume 1, Chapter 10, Fixed-Axis Rotation._
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