A softball diamond is a square whose sides are 18 m long. Suppose that a player running from first to second base has a speed of 7.5 m/s at the instant she is 3 m from second base. At what rate is the player's distance from home plate changing at that instant?

**Hint.** Draw a diagram and locate the variables that change with respect to time.

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In this problem, we will use "Geometry... View the full answer