Assertion (A) :- If a body is in a state of u | vedclass

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(D) In uniform circular motion,the speed of the body remains constant,but the direction of velocity changes continuously at every instant. Since veloc

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Both $(A)$ and $(R)$ are correct and $(R)$ is the correct explanation of $(A)$

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(D) In uniform circular motion,the speed of the body remains constant,but the direction of velocity changes continuously at every instant. Since velocity is a vector quantity,a change in direction implies that the velocity is varying.Similarly,the centripetal acceleration is always directed towards the center of the circular path. As the body moves,the direction of the center relative to the body changes,meaning the direction of acceleration also changes continuously. Thus,both velocity and acceleration are varying.The magnitude of centripetal acceleration is given by $a = v^2/r$,where $v$ is the speed and $r$ is the radius. Both statements are correct,and the reason explains why the acceleration is varying (because its direction changes even if its magnitude $v^2/r$ remains constant).

Assertion $(A)$ :- If a body is in a state of uniform circular motion,then its velocity and acceleration both are varying.
Reason $(R)$ :- If the magnitude of velocity is $v$ and the radius of uniform circular motion is $r$,then the magnitude of acceleration is $v^2/r$.

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Assertion $(A)$ :- If a body is in a state of uniform circular motion,then its velocity and acceleration both are varying.Reason $(R)$ :- If the magnitude of velocity is $v$ and the radius of uniform circular motion is $r$,then the magnitude of acceleration is $v^2/r$.