Exercise 4.1If the resultant R for F1, F2, F3and F4 acts along r-r, finda. magnitude of F4.yF2 = 100 Na, F1 = 40 Ni+15 Njb. the resultant R.c. the components of F2along a-a and b-b.Answer: (a) F4 = 38.5 N,(b) R = 12.96 N,(c) Fa-a=55.5 Nand F-b= 93.4 N410°45°60°a20°F3 = 50 NF4

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Exercise 4.1 If the resultant R for F1, F2, F3 and F4 acts along r-r, find a. magnitude of F4. b. the resultant R. c. the components of F2 along a-a and b-b. Answer: (a) F4 = 38.5 N, (b) R= 12.96 N, (c) Fa-a= 55.5 N and F,-b = 93.4 N

Exercise 4.1 If the resultant R for F1, F2, F3 and F4 acts along r-r, find a. magnitude of F4. b. the resultant R. c. the components of F2 along a-a and b-b. Answer: (a) F4 = 38.5 N, (b) R= 12.96 N, (c) Fa-a= 55.5 N and F,-b = 93.4 N

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

Exercise 4.1
If the resultant R for F1, F2, F3
and F4 acts along r-r, find
a. magnitude of F4.
y
F2 = 100 N
a, F1 = 40 Ni+15 Nj
b. the resultant R.
c. the components of F2
along a-a and b-b.
Answer: (a) F4 = 38.5 N,
(b) R = 12.96 N,
(c) Fa-a=55.5 N
and F-b= 93.4 N
4
10°
45°
60°
a
20°
F3 = 50 N
F4

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