Concept explainers
You can inn at a speed of 6 mph and swim at a speed of 3 mph and are located on the shore, 4 miles east of an island that is 1 mile north of the shoreline. How far should you run west to minimize the time needed to reach the island?
For the following problems, consider a lifeguard at a circular pool with diameter 40 m. He must reach someone
who is drowning on the exact opposite side of the pool, at position C. The lifeguard swims with a speed v and inns around the pool at speed w = 3v.
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Chapter 4 Solutions
Calculus Volume 1
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