Question: A runner times his speed around a track with a circumference of 0.50 mi. He finds that he has run a distance of 1.00 mi

A runner times his speed around a track with a circumference of 0.50 mi. He finds that he has run a distance of 1.00 mi in 4.0 min. What is his
(a) Average speed
(b) Average velocity magnitude in m/s?

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