Angular speed is the rate at which the central angle is changing. Suppose a bicycle wheel with diameter 700 mm makes 30 revolutions in t seconds.
a) Write an equation for the angular speed, v, as a function of time t.
b) Write an equation for angular speed, v, as a function of time t, if t is increased by 1 s.
c) Combine your functions to write an equation for the change in angular speed when time increases by 1 s.