Question

resultant of two perpendicular vectors of equal magnitude say A will be​

Answer 1

If the magnitude of the two vectors are A.

then their resultant

$= 2a \cos( \alpha \div 2) \\ = 2a \cos(45) \\ = 2 \times a \times 1 \div \sqrt{2 } \\ = \sqrt{2} a$

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