Engineering Mechanics: Statics & Dynamics (14th Edition)

Published by Pearson
ISBN 10: 0133915425
ISBN 13: 978-0-13391-542-6

Chapter 1 - General Principles - Problems - Page 15: 18


a) $0.447 kg * m/N$ b) $0.911kg*s$ c) $18.8 GN/m$

Work Step by Step

We are given a few quantities and are asked to evaluate each to three significant figures and express each answer in Sl units using an appropriate prefix. a)$(354 mg)(45 km)/(0.0356 kN) *\frac{1g}{10^3mg} *\frac{10^3m}{1km} *\frac{1kN}{1000N}=447 g * m/N$ $447 g * m/N *\frac{1kg}{10^3g}=0.447 kg * m/N$ b)$(0.00453 Mg)(201 ms) *\frac{1g}{10^6Mg} *\frac{1kg}{10^3g} *\frac{1s}{10^3ms}=0.911kg*s$ c)$(435 MN)/(23.2 mm) *\frac{10^3mm}{1m} *\frac{1N}{10^6MN} *\frac{1GN}{10^9N}=18.8 GN/m$
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