Question

time period of an athlete running in a circular track is 15s it's angular velocity in rads​

Answer 1

Explanation:

In uniform circular motion, angular velocity () is a vector quantity and is equal to the angular displacement (Δ, a vector quantity) divided by the change in time (Δ). Speed is equal to the arc length traveled (S) divided by the change in time (Δ), which is also equal to ||R.