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If a particle moves in a circle describing equal angles in equal intervals of time, the velocity vector

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If a particle moves in a circle describing equal angles in equal intervals of time, the velocity vector 

(A) remains constant.

(B) changes in magnitude only.

(C) changes in direction only.

(D) changes both in magnitude and direction.

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1 Answer

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The correct option is (C) changes in direction only.

The figure clearly describes motion of the particles and it is evident that the velocity vector changes direction continuously during the motion. As the particle is covering equal angles in equal time, the magnitude remains constant while the direction changes.

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