A ball is thrown in the air and follows the displacement function s(t) = -t² + 2t + 15 S where time 't' is in seconds and the displacement above the ground in meters. Find

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.1: Quadratic Functions And Models
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A ball is thrown in the air and follows the
displacement function s(t) = -t² + 2t + 15
where time 't' is in seconds and the displacement
above the ground in meters. Find
(a) The initial height (above the ground) from
which the ball is thrown?
(b) At what time does the ball reach its maximum
height? What is the the maximum height above the
ground?
(c) Determine when the ball hits the ground?
Transcribed Image Text:A ball is thrown in the air and follows the displacement function s(t) = -t² + 2t + 15 where time 't' is in seconds and the displacement above the ground in meters. Find (a) The initial height (above the ground) from which the ball is thrown? (b) At what time does the ball reach its maximum height? What is the the maximum height above the ground? (c) Determine when the ball hits the ground?
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