An object of mass 0.40 kg attached to the end of a string is whirled around in a horizontal circle of radius 2.0m with a constant speed of 8\(ms^{-1}\). Calculate the angular velocity of the object
- 0.8rad\(s^{-1}\)
- 2 rad\(s^{-1}\)
-
4 rad\(s^{-1}\)
- 8 rad\(s^{-1}\)
- 16 rad\(s^{-1}\)