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

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Accepted Answer

1.  **Analyze Velocity:** In uniform circular motion, the speed (magnitude of velocity) is constant. However, the direction of the velocity vector changes continuously at every point along the circular path. Since velocity is a vector quantity, a change in direction implies that the **velocity is varying** .
2.  **Analyze Acceleration:** The particle experiences centripetal acceleration directed towards the centre of the circle. The magnitude of this acceleration is $a_c = v^2/R$, which is constant because $v$ and $R$ are constant. However, the direction of the acceleration vector always points towards the centre, which changes continuously as the particle moves around the circle. Since the direction changes, the **acceleration is varying** .
3.  **Conclusion:** Both the velocity and the acceleration vectors vary due to the continuous change in direction.

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