Answer
$$a=4.86265433m/s^2$$
Work Step by Step
We know $v_f^2=v_i^2+2al$
Since $v_i=0$, $a=v_f^2/2l$
$$a=\frac{275^2}{2\cdot 1.2}=63020km/h^2=4.86265433m/s^2$$
Essential University Physics: Volume 1 (4th Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0-134-98855-8
ISBN 13:
978-0-13498-855-9
Chapter 2 - Exercises and Problems - Page 31: 42
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