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Mertsj
@satellite Why is radian considered a unitless measurement?
i am not sure i understand the question. if you say "3 radians" then i guess your units are radians
it's unit-less because it is defined in terms of the ratio of a circumference to its diameter, which is distance over distance, so the units cancel.
\[v= \omega r\] \[m/s= \frac{\omega}{sec} m \]
\[m/s= \frac{\theta}{sec} m\]