Answer questions 4-6: 4. Consider the three forces F = 5i + 2j kN, F2 = -31 - 8j kN, andFs = -4i + 7j kN. Find the resultant force, its magnitude, and idirection with respect to the positive x-axis.Answer:-2i + j kN, 2.24 kN, 153°.5. Consider the three forces F1%3D10i + 9j kN, F2 = -8i – 4j kN, and%3D%3DFs = 4i + 5j kN. Find the resultant force, its magnitute, and its direc-tion with respect to the positive x-axis.Answer: 6i + 10j kN, 11.7 kN, 59.0°.6. Consider the three forces F, = 2i + 8j + 7k lbf, F2 = 3i –j- k lb,and F3 = 3i +j+ 2k lbf. Find the resultant force and its magnitude.Answer: 8(i +j+ k) lb, 13.9 lbf%3D%3D

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Mechanical Engineering

%3D Fs=-4i +7j kN. Find the resultant force, its magnitude, and i direction with respect to the positive x-axis.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing. 

Question

Answer questions 4-6:

4. Consider the three forces F = 5i + 2j kN, F2 = -31 - 8j kN, and
Fs = -4i + 7j kN. Find the resultant force, its magnitude, and i
direction with respect to the positive x-axis.
Answer:-2i + j kN, 2.24 kN, 153°.
5. Consider the three forces F1
%3D
10i + 9j kN, F2 = -8i – 4j kN, and
%3D
%3D
Fs = 4i + 5j kN. Find the resultant force, its magnitute, and its direc-
tion with respect to the positive x-axis.
Answer: 6i + 10j kN, 11.7 kN, 59.0°.
6. Consider the three forces F, = 2i + 8j + 7k lbf, F2 = 3i –j- k lb,
and F3 = 3i +j+ 2k lbf. Find the resultant force and its magnitude.
Answer: 8(i +j+ k) lb, 13.9 lbf
%3D
%3D

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