#### Answer

7.84 seconds

#### Work Step by Step

Find the time required to travel to the ground where (height) s=0
$-16t^2+984=0$
$t^2=984/16=123/2$
$t=\sqrt {\frac{123}{2}}\approx 7.84$

Published by
Cengage Learning

ISBN 10:
9781337271172

ISBN 13:
978-1-33727-117-2

7.84 seconds

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