18 - Exspress the resultant force of the three forces as a vector form. Which following one is TRUE? unit vectors are i, j, k. A) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.cos75).j B) Resultant force: (5 + 4.cos45 - 8.cos75).i + (4.sin45 + 8.sin15).j C) Resultant force: (8 + 5.cos45 - 4.cos75).i - (5.sin45 + 4.sin75).j D) Resultant force: (4 + 5.cos45 - 8.cos75).i + (5.sin45 + 8.sin75).j E) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.sin75).j
18 - Exspress the resultant force of the three forces as a vector form. Which following one is TRUE? unit vectors are i, j, k. A) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.cos75).j B) Resultant force: (5 + 4.cos45 - 8.cos75).i + (4.sin45 + 8.sin15).j C) Resultant force: (8 + 5.cos45 - 4.cos75).i - (5.sin45 + 4.sin75).j D) Resultant force: (4 + 5.cos45 - 8.cos75).i + (5.sin45 + 8.sin75).j E) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.sin75).j
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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Question
18 -
Exspress the resultant force of the three forces as a vector form. Which following one is TRUE?
unit
A) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.cos75).j
B) Resultant force: (5 + 4.cos45 - 8.cos75).i + (4.sin45 + 8.sin15).j
C) Resultant force: (8 + 5.cos45 - 4.cos75).i - (5.sin45 + 4.sin75).j
D) Resultant force: (4 + 5.cos45 - 8.cos75).i + (5.sin45 + 8.sin75).j
E) Resultant force: (4 - 5.cos45 + 8.cos75).i + (5.sin45 - 8.sin75).j
Transcribed Image Text:F = 4 kN F, = 5 kN
F =8 kN
2
60°
45 °
F
1
> X
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