Rita Jeptoo of Kenya was the first female finisher in
Rita Jeptoo of Kenya was the first female finisher in the 110th Boston Marathon. She ran the first 10.0 km in a time of 0.5689 h. Assume the race course to be along a straight line.
(a) What was her average speed during the first 10.0 km segment of the race?
(b) She completed the entire race, a distance of 42.195 km, in a time of 2.3939 h. What was her average speed for the race?
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