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The magnitude of vectors $\vec{A}, \vec{B} and \vec{C}$ are 3, 4 and 5 units respectively. If $\vec{A} + \vec{B} = \vec{C}$ , the angle between $\vec{A} a n d \vec{B}$ is

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π2

cos-1(0.6)

tan-1(75)

π4

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detailed solution

Correct option is A

C = A2+B2= 32+42 = 5∴Angle between A→ and B→ is π2

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The magnitude of vectors A→ , B→ and C→ are 3, 4 and 5 units respectively. If A→+B→ =C→, the angle between A→ and B →is

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

The magnitude of vectors $\vec{A}, \vec{B} and \vec{C}$ are 3, 4 and 5 units respectively. If $\vec{A} + \vec{B} = \vec{C}$ , the angle between $\vec{A} a n d \vec{B}$ is