Home › AP Physics C: Mechanics › Physics › Rotational Motion and Angular Momentum › Units of radians are described as being:
Units of radians are described as being:
AIn kilograms
BDimensionless
CIn metres
DIn seconds
Answer & Solution
Correct answer: B. Dimensionless
1. Radians behave unusually among units.
2. Angular quantities are measured in radians.
3. Units of radians are dimensionless.
4. They appear in any relationship between angular and linear quantities.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 10 'Rotational Motion and Angular Momentum', sections 10.1-10.7_
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