Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 2 - Exercises and Problems - Page 29: 45


Please see the work below.

Work Step by Step

We know that $t=\frac{x}{v_1}$ $t=\frac{100}{9}=11.11s$ $d_2=(v_2)(t)$ We plug in the known values to obtain: $d_2=(0.80\times 9.0)(11.11)$ $d_2=80m$ Thus, they should give him a head start of 20m.
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