A motor vehicle is moving on a circle with a uniform speed. The net acceleration of the vehicle is

When a motor vehicle moves in a circle with uniform speed, it is undergoing uniform circular motion. In this state, while the magnitude of the velocity (speed) remains constant, the direction of the velocity vector changes continuously. This change in direction necessitates an acceleration, known as centripetal acceleration. Centripetal literally means 'center-seeking,' and this acceleration is always directed inward toward the center of the circular path, perpendicular to the instantaneous velocity. Since the speed is uniform, there is no tangential acceleration (which would change the speed). Therefore, the net acceleration consists solely of the centripetal component, which points directly toward the center of the circle.