A particle moving with uniform speed in a cir | vedclass

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Question

(C) In uniform circular motion,the speed of the particle remains constant,but the direction of motion changes at every point along the circular path.

Vedclass · Accepted Answer

Varying velocity and varying acceleration

Vedclass · Answer

(C) In uniform circular motion,the speed of the particle remains constant,but the direction of motion changes at every point along the circular path. Since velocity is a vector quantity (having both magnitude and direction),a change in direction implies a change in velocity. Therefore,the velocity is varying. Furthermore,the centripetal acceleration,given by $a_c = v^2/r$,is directed towards the center of the circle. As the particle moves,the direction of this acceleration vector changes continuously to remain pointing towards the center. Thus,both velocity and acceleration are varying.

$A$ particle moving with uniform speed in a circular path maintains:

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