3.3 The running gait cycle (🕒✎)

(a) Runner 1 has a step length of 1.3 m and a stride frequency of 75 strides/min. Runner 2 has a stride length of 2.8 m and a cadence of 160 steps/min. Who is a faster runner? By how much? Please provide your answer in m/s.

(b) Runner 3 has an asymmetrical running gait with a step length of 1.2 m for the right leg and a step length of 1.4 m for the left leg. If the runner's cadence is 150 steps/min, what is her running speed? How does her speed compare to that of Runner 1 and Runner 2?