The weight is not part of the centripetal force. I don't really like the diagram because it shows normal force instead of centripetal force. Normal force is the sum of centripetal force and weight, so why not just show the two components separately? It looks confusing to me.Naser Tay said:
Centripetal force is just some value the sum of all actual forces must have in order to make something go in circles.Naser Tay said:
Is it? At the top you'd have ##W+F_c=R_t##. At the Bottom you'd have ##W-F_c=R_b## And yet, ##R_t<R_b##.russ_watters said:
Gravity is a fundamental force that exists between any two objects with mass. It is the force that causes objects to be attracted towards each other. On the other hand, centripetal force is the force that keeps an object moving in a circular path. In some cases, the force of gravity can be greater than the centripetal force, causing the object to change its path or fall towards the center of rotation.
The relationship between gravity and centripetal force is based on Newton's laws of motion. According to the second law, the force required to keep an object moving in a circular path is directly proportional to the mass of the object and the square of its velocity. On the other hand, the force of gravity is dependent on the mass of the objects and the distance between them. Therefore, the strength of gravity can be greater than the centripetal force in certain situations.
Yes, it is possible for the centripetal force to be greater than the force of gravity. This can happen when the object is moving at a high velocity or when the distance between the objects is significant. In such cases, the centripetal force must be strong enough to balance the gravitational force and keep the object in its circular path.
The strength of gravity is affected by the masses of the objects and the distance between them. The larger the mass of the objects or the smaller the distance between them, the stronger the force of gravity will be. On the other hand, the strength of the centripetal force is affected by the mass of the object, its velocity, and the radius of its circular path. A larger mass or higher velocity will require a stronger centripetal force, while a smaller radius will result in a stronger force.
Understanding the relationship between gravity and centripetal force is essential in many fields of science, such as astronomy, physics, and engineering. It helps explain the motion of celestial bodies, the behavior of objects in orbit, and the design of structures like roller coasters and satellites. It is also crucial for predicting and understanding the effects of gravity on objects in our daily lives.
