Acccelerated motion but its speed at which body is rotating  always  remain constant.its happen because of act of gravity pulling us down act as a friction................
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A particle moving in a circular path may be an example of the required situation.
Since, at every moment the direction of velocity changes (as it is a vector) and is along the tangent of the circle at its position.Since, acceleration is concerned with change in velocity of a particle with time, hence it also changes.