A baseball diamond has equal sides of 90ft in length and each pair of adjacent sides are perpendicular to each other. Suppose that Roddy is the current batter and her teammates, Sandro and Michael, are at first and second base, respectively. When Roddy hit the baseball, Sandro runs at a speed of 18 ft/sec toward second base and Michael runs at a speed of 20 ft/sec toward third base. How fast is the distance between Sandro and Michael changing 1 sec after the ball was hit?

Elementary Geometry For College Students, 7e
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Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter9: Surfaces And Solids
Section9.1: Prisms, Area And Volume
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A baseball diamond has equal sides of 90ft in length and each pair of adjacent sides are perpendicular to each other. Suppose that Roddy is the current batter and her teammates, Sandro and Michael, are at first and second base, respectively. When Roddy hit the baseball, Sandro runs at a speed of 18 ft/sec toward second base and Michael runs at a speed of 20 ft/sec toward third base. How fast is the distance between Sandro and Michael changing 1 sec after the ball was hit?

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