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A Person Holds a Pistol Straight Upward and Fires

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A person holds a pistol straight upward and fires. The initial velocity of most bullets is around 1,490 feet per second. The height of the bullet t seconds after it is fired is a function described by
A person holds a pistol straight upward and fires. The initial velocity of most bullets is around 1,490 feet per second. The height of the bullet t seconds after it is fired is a function described by     a. What is the average of the bullet between 37 and 89 seconds after it is fired? b. What is the instantaneous velocity of the bullet when t = 91 seconds (shortly before its hits the ground)?
a. What is the average of the bullet between 37 and 89 seconds after it is fired?
b. What is the instantaneous velocity of the bullet when t = 91 seconds (shortly before its hits the ground)?

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a. -526.0 feet per s...

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