Consider a scenario where you’re spinning a ball tied to a string in a circular path around you. As the ball moves in a circle, it’s constantly changing direction, which requires a continuous force. This force, directed towards the center of the circle, is known as centripetal force. Without this force, the ball would move in a straight line rather than a circle.
Which of the following best describes the role of centripetal force in circular motion?
A) Centripetal force pushes the ball outward, away from the center of the circle.
B) Centripetal force is not necessary for circular motion and only acts when the speed changes.
C) Centripetal force keeps the ball moving in a circular path by pulling it towards the center.
D) Centripetal force only acts when the ball is moving at a constant speed.