If the bicyclist wanted to travel at a speed of *v*_{2} = 3.5 m/s, the time, which is required to make one complete revolution in the pedal is:

t = 2πr_{p}R/v_{2}r_{w}

A bicyclist notes that the pedal sprocket has a radius of rp = 11 cm while the wheel sprocket has a radius of rw = 6.5 cm. The two sprockets are connected by a chain which rotates without slipping. The bicycle wheel has a radius R = 63 cm. When pedaling the cyclist notes that the pedal rotates at one revolution every t = 1.9 s. When pedaling, the wheel sprocket and the wheel move at the same angular speed.

*r _{p}* = 11 cm

If the cyclist wanted to travel at a speed of *v*_{2} = 3.5 m/s, how much time, in seconds, should elapse as the pedal makes one complete revolution?

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