Let overrightarrow A = hat{i}A,cos θ + hat{j}A,sin θ be any vector. Another vector overrightarrow

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3-1.Vectors

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Let $\overrightarrow A = \hat iA\,\cos \theta + \hat jA\,\sin \theta $ be any vector. Another vector $\overrightarrow B $ which is normal to $\overrightarrow A$ is

A

$\hat i\,B\,\cos \theta + j\,B\sin \theta $

B

$\hat i\,B\,\sin \theta + j\,B\cos \theta $

C

$\hat i\,B\,\sin \theta - j\,B\cos \theta $

D

$\hat i\,B\,\cos \theta - j\,B\sin \theta $

Solution

(c)Dot product of two perpendicular vector will be zero.

Standard 11

Physics

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