A wheel completes 5.6 revolutions in 8 seconds.
What is the angular velocity of the wheel in radians per minute?
Give your answer in exact form as a simplified fraction.
One revolution is 2·pi radians.
5.6 revolutions in 8 seconds is 11.2·pi radians in 8 seconds.
Multiplying to get 60 seconds: 11.2·pi·7.5 radians in 60 seconds = 84·pi radians per minute.