Answer
(a) Time, $t\approx 11.41$ $s$
(b) Acceleration, $a\approx 44.7$ $m/s^{2}$
Work Step by Step
(a) Given, $v=60.0$ $mi/h$ $=\frac{60\times1609.34}{3600}$ $m/s$ $\approx26.82$ $m/s$
$a=+2.35$ $m/s^{2}$
$v=u+at$
$26.82=0+2.35t$
$t=\frac{26.82}{2.35}$ $s$
$t\approx 11.41$ $s$
(b) Given, $v=60.0$ $mi/h$ $=\frac{60\times1609.34}{3600}$ $m/s$ $\approx26.82$ $m/s$
$t=0.600$ $s$
$v=u+at$
$26.82=0+0.6a$
$a=\frac{26.82}{0.6}$ $m/s^{2}$
$a\approx 44.7$ $m/s^{2}$
