Sean is running a 100 m dash. When the starter’s pistol fires, he leaves the starting block and continues speeding up until 6 s into the race, when he reaches his top speed of 11 m/s. He holds this speed for 2 s; then his speed has slowed to 10 m/s by the time he crosses the finish line 11 s after he started the race. What was Sean’s average acceleration during the first 6 s of the race? What was Sean’s average acceleration from 6 to 8 s into the race? What was Sean’s average acceleration from 8 to 11 s into the race?
Sean is running a 100 m dash. When the starter’s pistol fires, he leaves the starting block and continues speeding up until 6 s into the race, when he reaches his top speed of 11 m/s. He holds this speed for 2 s; then his speed has slowed to 10 m/s by the time he crosses the finish line 11 s after he started the race. What was Sean’s average acceleration during the first 6 s of the race? What was Sean’s average acceleration from 6 to 8 s into the race? What was Sean’s average acceleration from 8 to 11 s into the race?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Sean is running a 100 m dash. When the starter’s pistol fires, he leaves the starting block and continues speeding up until 6 s into the race, when he reaches his top speed of 11 m/s. He holds this speed for 2 s; then his speed has slowed to 10 m/s by the time he crosses the finish line 11 s after he started the race.
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What was Sean’s average acceleration during the first 6 s of the race?
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What was Sean’s average acceleration from 6 to 8 s into the race?
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What was Sean’s average acceleration from 8 to 11 s into the race?
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