To qualify for the fi nals in a racing event, a race car
Chapter 2, Problem 2.51(choose chapter or problem)
To qualify for the fi nals in a racing event, a race car must achieve an average speed of 250 km/h on a track with a total length of 1 600 m. If a particular car covers the fi rst half of the track at an average speed of 230 km/h, what minimum average speed must it have in the second half of the event in order to qualify?
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