Theree coplanar vectors `vecA,vecB` and `vecC` have magnitudes 4.3 and 2 respectively. If the angle between any two vectors is `120^(@)` then which of the following vector may be equal to `(3vecA)/(4)+(vecB)/(3)+(vecC)/(2)` B. C. D.

Theree coplanar vectors `vecA,vecB` and `vecC` have magnitudes 4.3 and

1.	Theree coplanar vectors `vecA,vecB` and `vecC` have magnitudes 4.3 and 2 respectively. If the angle between any two vectors is `120^(@)` then which of the following vector may be equal to `(3vecA)/(4)+(vecB)/(3)+(vecC)/(2)` B. C. D.
Answer» Correct Answer - 2 `\|(vecB)/(3)\|=\|(vecC)/(2)\|` so `(vecB)/(3)+(vecC)/(2)=(vecA)/(4) "therefore" (3vecA)/(4)+(vecB)/(3)+(vecC)/(2)=(vecA)/(2)`

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Theree coplanar vectors `vecA,vecB` and `vecC` have magnitudes 4.3 and 2 respectively. If the angle between any two vectors is `120^(@)` then which of the following vector may be equal to `(3vecA)/(4)+(vecB)/(3)+(vecC)/(2)` B. C. D.

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