Yes, an object can be accelerating and experiencing an instantaneous velocity of 0 m/s. This happens when the object changes its direction of motion. For example, when a car is moving at constant speed in a circular path, its velocity is always changing direction, so at every instant, the car's velocity vector is perpendicular to its acceleration vector, resulting in an instantaneous velocity of 0 m/s. Similarly, when an object is thrown upwards and reaches the peak of its path, it momentarily stops moving upwards before beginning to fall back down. At this point, the object's velocity momentarily becomes 0 m/s, but it is still experiencing acceleration due to gravity.
