Answer
$1\ sec$
$16\ ft$
Work Step by Step
Step 1. Use the given formula $s(t)=-16t^2+32t$, the maximum height happens when $t=-\frac{32}{2(-16)}=1\ sec$
Step 2. At $t=1$, we have the maximum height as $s(1)=16\ ft$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 3 - Polynomial and Rational Functions - 3.1 Quadratic Functions and Models - 3.1 Execises - Page 317: 67
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