The angular acceleration has units
Correct answer: D. None of these
- A. rad/sec
- B. sec/rad
- C. sec2
- D. None of these
Explanation
The units of angular acceleration are radians per second (rad/s). Angular acceleration is the rate of change of angular velocity, and its unit is radians per second squared (rad/s2).
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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