At 2:00 PM a car's speedometer reads 50 mi/h. At 2:15 PM it reads 75 mi/h. Show that between 2:00 and 2:15 PM the car's acceleration cannot be always less than 90 mi/h².

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
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I was wondering how to do this problem because I don't know if it is an optimization problem or trying to locate the local max or min. Can anyone so me the steps to this

1. (a) At 2:00 PM a car's speedometer reads 50 mi/h. At 2:15 PM it reads 75 mi/h. Show
that between 2:00 and 2:15 PM the car's acceleration cannot be always less than 90
mi/h?.
Transcribed Image Text:1. (a) At 2:00 PM a car's speedometer reads 50 mi/h. At 2:15 PM it reads 75 mi/h. Show that between 2:00 and 2:15 PM the car's acceleration cannot be always less than 90 mi/h?.
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