Acceleration is the rate of change of velocity. usually, acceleration means the speed is changing, but not always. when an object moves in a circular path at constant speed, it is still accelerating, because the direction of its velocity is changing.
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Acceleration is the rate of change of velocity. usually, acceleration means the speed is changing, but not always. when an object moves in a circular path at constant speed, it is still accelerating, because the direction of its velocity is changing.