Question: Suppose the circular track in Figure 5.1 has a radius of 100 m and the runner has a speed of 5.0 m/s. (a) What is

Suppose the circular track in Figure 5.1 has a radius of 100 m and the runner has a speed of 5.0 m/s.

(a) What is the period of the motion?

(b) If the radius of the track were reduced to 50 m and the runner maintained this speed, by what factor would the runnerâ€™s centripetal acceleration change?

Figure 5.1

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