Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 9 (Q.No. 14)
14.
Figure shows the forces acting on a body. Each square is 3 cm x 3 cm. If F1 = 30 N, F2 = 15 N, F3 = 25 N and F4 = 20 N, the resultant force and the moment about point O, respectively, are
0 N, 0 Ncm
90 N, 80 Ncm
60 N, 60 Ncm
30 N, 30 Ncm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Dibakar said:   4 years ago
F3' =F3 sin 36.87=15 kn.

F3"=20 kn downward.

sumV> F1-F2-F3'=0 & F4-F3"=0,
sumM> F1* 9 - F2* 6 - F* 9=0.

Ashish said:   5 years ago
Please describe the solution.

Omprakash said:   10 years ago
Please note that this is my approach of thinking is is right or may be its wrong. You decide whether it is right or wrong. But my answer to this question I option (A) thanks.

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