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A rock is thrown vertically upward with a velocity of 256 ft/s, so its position function can be modeled as s(t) = −16t² + 256t. What is the velocity of the rock when it first reaches a vertical height of 448 ft? Provide your answer below: ft/s

A rock is thrown vertically upward with a velocity of 256 ft/s, so its position function can be modeled as s(t) = −16t² + 256t. What is the velocity of the rock when it first reaches a vertical height of 448 ft? Provide your answer below: ft/s

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.CT: Chapter Test
Problem 4CT
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A rock is thrown vertically upward with a velocity of 256 ft/s, so its position function can be modeled as s(t) = -16t² + 256t. What is the velocity of the rock when it first reaches a vertical height of 448 ft? Provide your answer below: ft/s
Transcribed Image Text:A rock is thrown vertically upward with a velocity of 256 ft/s, so its position function can be modeled as s(t) = -16t² + 256t. What is the velocity of the rock when it first reaches a vertical height of 448 ft? Provide your answer below: ft/s
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