Final answer:
A car rounding a curve naturally tends to move to the outside of the curve due to centrifugal force, which is a result of the car's inertia and the absence of sufficient centripetal force to counteract this motion.
Step-by-step explanation:
When rounding a curve, a car tends to move to the outside of the curve. This is due to the centrifugal force, which is a fictitious force that appears in a rotating reference frame, such as a car going around a bend.
This force is not an actual force but a result of the inertia of the body in the car, which is governed by Newton's first law, dictating that an object in motion tends to stay in motion in a straight line unless acted upon by a net external force.
As the car turns, the body inside wants to continue moving straight, thus appearing to be flung outwards.
Race car drivers take advantage of this effect by 'cutting the corner' or taking the inside path, which allows them to maintain higher speeds around the curve.
However, without these techniques, the natural tendency of a car is to move to the outside of the curve due to the effects of inertia and the need for a centripetal force to keep the car moving in a curved path.