In uniform linear motion, the object's velocity remains constant in both magnitude (speed) and direction. Acceleration, on the other hand, is defined as the rate of change of velocity. Since the velocity of an object in uniform linear motion is constant, its acceleration is zero.

While the object is moving with constant speed in uniform linear motion, it does not experience any change in its velocity. There is no acceleration or deceleration, and the object continues moving in a straight line with the same speed.