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Sean is running a 100 m dash. When the starter's pistol fires, he leaves the
starting block and speeds up until he reaches his top speed of 8.7 m/sec, 6
seconds into the race. He holds this speed for 2 seconds and then gradually
slows down until he crosses the finish line 11.3 seconds after he started the
race. What was Sean's average acceleration during the first 6 seconds of the
race, in m/sec??
Transcribed Image Text:Sean is running a 100 m dash. When the starter's pistol fires, he leaves the starting block and speeds up until he reaches his top speed of 8.7 m/sec, 6 seconds into the race. He holds this speed for 2 seconds and then gradually slows down until he crosses the finish line 11.3 seconds after he started the race. What was Sean's average acceleration during the first 6 seconds of the race, in m/sec??
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