What is the formula? What is the unit? Write about it R / s and rad / s are the same thing?

What is the formula? What is the unit? Write about it R / s and rad / s are the same thing?

Angular velocity W = π / T
Brother upstairs, you should answer carefully. It should be: angular velocity ω = 2 π / T
Where, the unit of ω is rad / S (radians / second)
The unit of V is m / s
R / s represents revolutions per second, rad / s represents radians per second
1r/s=2π*rad/s