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Let vecA be a unit vector along the axis...

Let `vecA` be a unit vector along the axis of rotation of a purely rotating body and `vecB` be a unit vector along the velocity of a particle P of the body away from the axis. The value of `vecA.vecB` is

A

1

B

-1

C

0

D

none of these

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • The unit vector along the negative z-axis is :

    A
    `-hat(k)`
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  • If hatn is a unit vector along the direction of vecA then hatn is

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    `vecA A`
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    C
    `vecA//|A|`
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    `vecA|A|`

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