No, in physics, acceleration is defined as the rate of change of velocity. Velocity, on the other hand, is a vector quantity that includes both magnitude (speed) and direction. So, to accelerate, you must necessarily change your velocity, either by changing your speed, changing your direction, or both.
Acceleration is mathematically represented as the derivative of velocity with respect to time. If the velocity of an object is not changing, its acceleration is zero. This means that if an object is moving at a constant speed in a straight line or is at rest (zero velocity), it is not undergoing any acceleration.
However, it is important to note that even if an object's velocity remains constant, it can still experience forces acting on it. For example, if an object is moving at a constant speed in a circular path, it is constantly changing direction and thus experiencing a centripetal acceleration. In this case, the object's velocity remains constant in magnitude but changes in direction, resulting in an acceleration towards the center of the circular path.
In summary, in physics, acceleration involves a change in velocity, either in terms of speed or direction. Without a change in velocity, there is no acceleration.