The resultant of two vectors vecA and ve...

The resultant of two vectors `vecA` and `vecB` is perpendicular to the vector `vecA` and its magnitude is equal to half of the magnitude of the vector `vecB`. Find out the angles between `vecA` and `vecB`.
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A

10 units

B

`10 sqrt(3)` units

C

`10sqrt(2) ` units

D

`5 sqrt(3)` units

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The correct Answer is:

B

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