System Dynamics 3rd Edition

Published by McGraw-Hill Education
ISBN 10: 0073398063
ISBN 13: 978-0-07339-806-8

Chapter 1 - Problems: 1.6

Answer

$34.09\ mph$

Work Step by Step

$ Distance$ $ 1\ mile=5280 ft $ $1\ yard = 3 ft$ $1\ ft= 12 in$ $Time$ $1\ hour= 60 min$ $1\ minute= 60 sec$ We use unit conversions to find: $\frac{50 ft}{1 sec}\times\frac{1 mi.}{5280 ft}\times\frac{60 sec}{1 min}\times\frac{60 min}{1 hr}=\frac{180,000 mi}{5280 hr}\approx \ 34.09 mph$
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