The centripetal force is supplied by the tension in a string, gravitational force, friction, or any force pointing towards the center of the circular motion that keeps an object moving in a curved path.
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The weight of the hooked masses can be considered equal to the centripetal force when they are in circular motion because the centripetal force required to keep an object moving in a circle at a constant speed is provided by the tension in the string which is equivalent to the weight of the masses according to Newton's second law (F = ma).
The friction between the tires and the road surface supplies the centripetal force needed for a car to turn a corner on a valid road. The tires grip the road and create a frictional force that acts towards the center of the turn, allowing the car to change direction.
The symbol for centripetal force is "Fc".
That is called a centripetal force.
Centripetal force is the force that keeps an object moving in a circular path. Centripetal force always acts in the direction of the center of the circle. Centripetal force is a real physical force that pulls objects radially inward. Centripetal force is necessary to maintain circular motion.