Problem 126PE Applications and Examples Can the integrations in (a) and (b) both be correct? Explain.
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Textbook Solutions for Thomas' Calculus: Early Transcendentals
Question
Problem 27PE
Theory and Examples
Assume that the brakes of an automobile produce a constant deceleration of k ft/sec2 (a) Determine what k must be to bring an automobile traveling 60 mi/hr (88 ft/sec ) to rest in a distance of 100 ft from the point where the brakes are applied. (b) With the same k, how far would a car traveling 30 mi/hr travel before being brought to a stop?
Solution
The first step in solving 4 problem number trying to solve the problem we have to refer to the textbook question: Problem 27PETheory and ExamplesAssume that the brakes of an automobile produce a constant deceleration of k ft/sec2 (a) Determine what k must be to bring an automobile traveling 60 mi/hr (88 ft/sec ) to rest in a distance of 100 ft from the point where the brakes are applied. (b) With the same k, how far would a car traveling 30 mi/hr travel before being brought to a stop?
From the textbook chapter Applications of Derivatives you will find a few key concepts needed to solve this.
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