If the resultant of two forces P and Q acting at...

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If the resultant of two forces P and Q acting at an angle $$\theta $$ makes an angle $$\alpha $$ with P, then tan $$\alpha $$ equals

A. $$\frac{{{\text{P}}\sin \theta }}{{{\text{P}} - {\text{Q}}\cos \theta }}$$

B. $$\frac{{{\text{Q}}\sin \theta }}{{{\text{P}} + {\text{Q}}\cos \theta }}$$

C. $$\frac{{{\text{P}}\sin \theta }}{{{\text{P}} + {\text{Q}}\tan\theta }}$$

D. $$\frac{{{\text{Q}}\sin \theta }}{{{\text{P}} + {\text{Q}}\sin\theta }}$$

Answer: Option B

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