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

• A.0.8rad\(s^{-1}\)
• B.2 rad\(s^{-1}\)
• C.4 rad\(s^{-1}\)
• D.8 rad\(s^{-1}\)
• E.16 rad\(s^{-1}\)