Question
Complete the table for two vectors $\overrightarrow{ P }$ and $\overrightarrow{ Q }$ inclined at angle θ.
 $\theta$Resultant
 vector
$(\vec{R})$
Direction of
 resultant
 vector with
 $\vec{P}(\alpha)$
i.0^(@)---------------------
ii.90^(@)--------------------
iii.180^(@)--------------------

Answer

 $\theta$Resultant
 vector
$(\vec{R})$
Direction of
 resultant
 vector with
 $\vec{P}(\alpha)$
i.0^(@)$P+Q$0
ii.90^(@)$\sqrt{ P ^2+ Q ^2}$$\tan^{-1}\left(\frac{Q}{P}\right)$
iii.180^(@)$P - Q$0

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