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Data Structures and Algorithm Analysis - Computer Science at ...

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52 Chap. 2 M<strong>at</strong>hem<strong>at</strong>ical Preliminaries2.47 A man begins a car trip to visit his in-laws. The total distance is 60 miles,<strong>and</strong> he starts off <strong>at</strong> a speed of 60 miles per hour. After driving exactly 1 mile,he loses some of his enthusiasm for the journey, <strong>and</strong> (instantaneously) slowsdown to 59 miles per hour. After traveling another mile, he again slows to58 miles per hour. This continues, progressively slowing by 1 mile per hourfor each mile traveled until the trip is complete.(a) How long does it take the man to reach his in-laws?(b) How long would the trip take in the continuous case where the speedsmoothly diminishes with the distance yet to travel?

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