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A runner speeds up from 5 m/s to 9 m/s during the last strech of a race at a rate of 1 m/s². how long does it take the runner to reach the faster pace?​

A runner speeds up from 5 m/s to 9 m/s during the last strech of a race at a rate of 1 m/s². how long does it take the runner to reach the faster pace?​
asked 12.4k views
12 votes
a runner speeds up from 5 m/s to 9 m/s during the last strech of a race at a rate of 1 m/s². how long does it take the runner to reach the faster pace?​

asked
User Jon Raynor
by
8.2k points

1 Answer

8 votes
4 seconds
9-5 is 4

Accelerates at 1m/ss

4 seconds
answered
User DGarvanski
by
8.2k points
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