Civil Engineering - Applied Mechanics - Discussion


The resultant of two forces P and Q acting at an angle θ, is

[A]. P2 + Q2 + 2P sin θ
[B]. P2 + Q2 + 2PQ cos θ
[C]. P2 + Q2 + 2PQ tan θ

Answer: Option D


No answer description available for this question.

Anonymous said: (Jul 20, 2016)  
Answer should be (P^2 + Q^2 - 2PQcos (a) ) ^0.5; a for angle theta - Using cosine law.

Manjunatha K said: (Nov 28, 2016)  
Can you please elaborate? How it's negative?

Gyanesh said: (Mar 21, 2018)  
Answer should be C.

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