#### Answer

$a). 27.44 m/s$
$b). 38.4m$

#### Work Step by Step

a). $v=u+at$
$v=0+(9.8\times2.8)=27.44m/s$
b). $S=ut+\frac{1}{2}at^{2}=0+(0.5\times 9.8\times 2.8^{2})=38.4m$

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Published by
Pearson

ISBN 10:
0-32160-183-1

ISBN 13:
978-0-32160-183-4

$a). 27.44 m/s$
$b). 38.4m$

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