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Question 8

Page history last edited by PBworks 16 years, 7 months ago

Question 8


You MAY use a calculator to solve this problem.



A baseball diamond is a square with each side 90 feet in length. A player runs from second base to third base at a rate of 18 ft/sec.


(a) At what rate is the player's distance from first base, A, changing when his distance from third base, D, is 22.5 feet?


(b) At what rate is angle α increasing when D is 22.5 feet?


(c) At what rate is the area of the trapezoidal region, formed by segments A, B, C and D changing when D is 22.5 feet?



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