Halliday, Fundamentals of Physics, 10e US ignment Chapter 07, Problem 047 A mach
ID: 1533975 • Letter: H
Question
Halliday, Fundamentals of Physics, 10e US ignment Chapter 07, Problem 047 A machine carries a 5.0 kg package from an initial position of di (0.5 m)i (0.76 m) (0.28 m)k att- o to a final position of d f (11.5 m) (16.0 m) j+(9.2 m)k at t 16.0 s. The constant force applied by the machine on the package is F (2.0 N )i+ (6.0 N j+ (80 N )k. For that displacement, fiind ca) the work done on the package by the machine's force and (b) the average power of the machine's force on the package (a) Number Units (b) Number click if you would like to show work for this question: Qpen Show Work LINK TOSAMPLE PROBLEM UNKTO SAMPLE PROBLEM MATH HELP VIDEO MINI-LECTURE By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Policy I 2000-2012lohn Wuley Sons unca All Rights Reserved A Division of John Wiley B Sons Inc.Explanation / Answer
Given di=0.5i + 0.76j +0.28k
df=11.5i+ 16.0j + 9.2k
Net dispalcement=df-di=(1.5i+ 16.0j + 9.2k)-(0.5i + 0.76j +0.28k)
d=1i +15.24 j + 8.92k
Force = F=2i + 6j + 8k N
(a)Work = F.d= (2i + 6j + 8k ).(1i +15.24 j + 8.92k)=2+91.44+71.36=164.8 J
t=16s
(b)Power=work/time=164.8/16=10.3W
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