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A spot light S rotates in a horizontal p...

A spot light S rotates in a horizontal plane with a constant angular velocity of 0.1 rad`//`s. The spot of light P moves along the wall at a distance 3m. What is the velocity of the spot P when `theta=45^(@)`?

A

`0.6 m//s`

B

`0.5 m//s`

C

`0.4 m//s`

D

`0.3 m//s`

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The correct Answer is:
A
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