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A Projectile Is Fired Straight Up from an Initial Height

Question 58

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A projectile is fired straight up from an initial height of 150 feet, and its height is a function of time, h(t) = -16t2 + 128t + 150 where h is the height in feet and t is the time in second with t = 0 corresponding to the instant it launches. What is the height 3 seconds after launch?

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