Circular Motion Related Rates
A runner travels at a constant speed of 4 m/s along a circular track with a radius of 60 meters. A stationary observer is located at the runner’s starting point. At the instant 10π seconds after the runner begins, what is the rate at which the distance between the runner and the observer is changing?
A
1 m/s
B
2sqrt(3) m/s
C
sqrt(3) m/s
D
2 m/s
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