A particle is moving in a circle of radius \( r \) centre at \( \mathrm{O} \) with constant spee....

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A particle is moving in a circle of radius \( r \) centre at \( \mathrm{O} \)
\( \mathrm{P} \)
with constant speed \( \mathrm{v} \) the change in velocity moving
W
from \( \mathrm{A} \) to \( \mathrm{B}\left(\angle \mathrm{AOB}=40^{\circ}\right) \) is -
(A) \( 2 \mathrm{v} \cos 40^{\circ} \)
(B) \( 2 \mathrm{v} \sin 40^{\circ} \)
(C) \( 2 \mathrm{v} \cos 20^{\circ} \)
(D) \( 2 \mathrm{v} \sin 20^{\circ} \)


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