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: 14

Answer

a) $44.9(10^-3)N^2$ b) $2.79(10^3)s^2$ a) $23.4s$

Work Step by Step

We are given a few quantities and asked to evaluate each to three significant figures and express each answer in SI units using an appropriate prefix. a) $(212mN)^2 * (\frac{1N}{10^3mN})^2=0.0449N^2= 44.9(10^-3)N^2$ b) $(52 800 ms)^2 * (\frac{1s}{10^3ms})^2=2788s^2= 2.79(10^3)s^2$ c) $(548(10^6))^{1/2}ms * (\frac{1s}{10^3ms})=23.4s$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.