In April 1974, Steve Prefontaine completed a 10.0 km race in a time of 27 min, 43.6 s. Suppose "Pre" was at the 8.41 km mark at a time of 25.0 min. If he accelerated for 60 s and then maintained his increased speed for the remainder of the race, calculate his acceleration over the 60 s interval. Assume his instantaneous speed at the 8.41 km8.41 km mark was the same as his overall average speed up to that time. acceleration: ?

College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 64AP: To pass a physical education class at a university, a student must run 1.0 mi in 12 min. After...
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In April 1974, Steve Prefontaine completed a 10.0 km race in a time of 27 min, 43.6 s. Suppose "Pre" was at the 8.41 km mark at a time of 25.0 min. If he accelerated for 60 s and then maintained his increased speed for the remainder of the race, calculate his acceleration over the 60 s interval. Assume his instantaneous speed at the 8.41 km8.41 km mark was the same as his overall average speed up to that time.
acceleration: ?
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