Physics - Vectors Question with Solution | TestHub

PhysicsVectorsAddition/SubtractionEasy2 minPYQ_2016

PhysicsEasysingle choice

If $A$ and $B$ are non-zero vectors which obey the relation $∣ A + B ∣ = ∣ A - B ∣$ , then the angle between them is

Answer:

Solution:

$∴ ∣ A + B ∣ = ∣ A - B ∣ ∣ A ∣^{2} + ∣ B ∣^{2} + 2∣ A ∣∣ B ∣ cos θ = ∣ A ∣^{2} + ∣ B ∣^{2} - 2∣ A ∣∣ B ∣ cos θ cos θ = 0 \Rightarrow θ = 9 0^{\circ}$

Stream:AIIMSSubject:PhysicsTopic:VectorsSubtopic:Addition/Subtraction

⏱ 2mℹ️ Source: PYQ_2016

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