17. For the first 1200 m of a 1500-m race, a runner's average speed is 6.14...

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17. For the first 1200 m of a 1500-m race, a runner's average speed is 6.14 m/s. To finish in under 4 minutes, the runner's average speed for the remainder of the race must be at least (a) 6.73 m/s; (b) 7.14 m/s; (c) 8.05 m/s; (d) 8.29 m/s. 17. For the first 1200 m of a 1500-m race, a runner's average speed is 6.14 m/s. To finish in under 4 minutes, the runner's average speed for the remainder of the race must be at least (a) 6.73 m/s; (b) 7.14 m/s; (c) 8.05 m/s; (d) 8.29 m/s.

Answer rating: 100% (QA)

To solve this problem we need to first figure out how long it took the runner to complete the first ... View the full answer