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A vector hati+sqrt(3)hatj rotates about ...

A vector `hati+sqrt(3)hatj` rotates about its tail through an angle `60^(@)` in clockwise direction then the new vector is

A

`hati+sqrt(3)hatj`

B

`3hati-4hatj`

C

`2hatj`

D

`2hati`

Text Solution

Verified by Experts

The correct Answer is:
D

w.r.t. x-axis initially `theta=60^(@),|vecA|=2` units
on rotation `theta^(1)=0^(@),|vecA|^(1)=2` units
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