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Physics - Vectors Question with Solution | TestHub

PhysicsVectorsAddition/SubtractionEasy2 minPYQ_2024

PhysicsEasysingle choice

The resultant of $A$ and $B$ is $R_{1}$ . On reversing the vector $B$ , the resultant becomes $R_{2}$ . What is the value of $R_{1}^{2} + R_{2}^{2}$ ?

Options:

Answer:

Solution:

$R_{1}^{2} = A^{2} + B^{2} + 2 A B cos θ R_{2}^{2} = A^{2} + B^{2} - 2 A B cos θ ∴ R_{1}^{2} + R_{2}^{2} = 2 (A^{2} + B^{2})$

Stream:VITEEESubject:PhysicsTopic:VectorsSubtopic:Addition/Subtraction

⏱ 2mℹ️ Source: PYQ_2024

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