Curves

As a result of the angle of a curve and the physics of centripetal force, which always works toward the center of a circle, a certain speed exists for which driving in a curve is ideal. Essentially, at this speed a person could drive smoothly without needing to press on the gas or the brakes, as long as he/she exerts an initial force while going into the turn.

Centripetal Acceleration

 Centripetal force is the force which allows an object to travel in a circular path. This force always acts toward the center of the circle in uniform circular motion; meanwhile, the velocity of the object remains linear (tangential to the path of the circle). The fact that the net applied force (and

the acceleration) is perpendicular to the direction of motion causes the linear velocity differ at every instant, creating a circular path for the object to follow.