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Two vectors each of magnitude A are inclined at angle θ with each other, then magnitude of resultant vector is

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+1 vote
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Two vectors each of magnitude A are inclined at angle θ with each other, then magnitude of resultant vector is

(1) \(A\cos^2 \frac \theta2\)

(2) \(2A\cos \frac \theta2\)

(3) \(2A\cos \theta\)

(4) \(A\cos \frac \theta2\)

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1 Answer

+2 votes
by (35.0k points)

Correct option is (2) \(2A\cos \frac \theta2\) 

The magnitude of resultant vector

The magnitude of resultant vector

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