Answer
(a) $t = 12.9~s$
(b) $m = 45.9~kg$
Work Step by Step
(a) $v_f = v_0+at$
$t = \frac{v_f-v_0}{a}$
$t = \frac{22~m/s-0}{1.7~m/s^2}$
$t = 12.9~s$
(b) $F=ma$
$m = \frac{F}{a}$
$m = \frac{78~N}{1.7~m/s^2}$
$m = 45.9~kg$
College Physics (4th Edition)
by Giambattista, Alan; Richardson, Betty; Richardson, Robert
Published by
McGraw-Hill Education
ISBN 10:
0073512141
ISBN 13:
978-0-07351-214-3
Chapter 3 - Problems - Page 113: 37
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