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Question

Find component of vector A along the direction of B i.e. A||B and in perpendicular direction of B that is AB.


A

A||B = 33;AB=3

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B

A||B = 33;AB=332

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C

A||B = 32;AB=12

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D

A||B = 33;AB=332

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Solution

The correct option is A

A||B = 33;AB=3


So, we need to resolve the vector A along the direction of B and perpendicular to it.

Angle between A & B is 30

So component along the direction B is using trigonometric ration

6cos30 = compound of A along B = 33 component of A perpendicular to B = 6 sin30 = 3


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