find-the-vector-sum-of-two-vectors-of-magnitude-of-7-and-8-making-an-angle-of-120-to-each-other-

Question Number 62583 by Jmasanja last updated on 23/Jun/19

f i n d t h e v e c t o r s u m o f t w o v e c t o r s

o f m a g n i t u d e o f 7 a n d 8 m a k i n g a n

a n g l e o f 120 ° t o e a c h o t h e r

Answered by MJS last updated on 23/Jun/19

(\begin{matrix} 7 \\ 0 \end{matrix}) + (\begin{matrix} 8 \\ 8 \sin 120 ° \end{matrix}) = (\begin{matrix} 15 \\ 4 \sqrt{3} \end{matrix})

its magnitude is \sqrt{273}

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