Secretariat ran the Kentucky Derby with times for the quarter-mile of 25.2 s, 24.0 s, 23.8 s, and 23.0 s. (a) Find his average speed during each quarter-mile segment. (b) Assuming that Secretariat's instantaneous speed at the finish line was the same as the average speed during the final quarter-mile, find his average acceleration for the entire race. (Hint: Recall that horses in the Derby start from rest.)
Secretariat ran the Kentucky Derby with times for the quarter-mile of 25.2 s, 24.0 s, 23.8 s, and 23.0 s. (a) Find his average speed during each quarter-mile segment. (b) Assuming that Secretariat's instantaneous speed at the finish line was the same as the average speed during the final quarter-mile, find his average acceleration for the entire race. (Hint: Recall that horses in the Derby start from rest.)
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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Secretariat ran the Kentucky Derby with times for the quarter-mile of 25.2 s, 24.0 s, 23.8 s, and 23.0 s.
(a) Find his average speed during each quarter-mile segment.
(b) Assuming that Secretariat's instantaneous speed at the finish line was the same as the average speed during the final quarter-mile, find his average acceleration for the entire race. (Hint: Recall that horses in the Derby start from rest.)
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