Question

@satellite Why is radian considered a unitless measurement?

Answer 1

??

Answer 2

i am not sure i understand the question. if you say "3 radians" then i guess your units are radians

Answer 3

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.

Answer 4

\[v= \omega r\]

\[m/s= \frac{\omega}{sec} m \]

Answer 5

\[m/s= \frac{\theta}{sec} m\]

Answer 6

thanks, turing