Why is centrifugal force fictitious




















The centrifugal force is not some psychological oddity humans experience. Example: If you whirl a tin can on the end of a string, you must keep pulling on the string—exerting a centripetal force. The force exerted on a whirling can is toward the center. No outward force acts on the can. Joe is sitting 2m from the center of a merry-go-round that has a frequency of 1. Centripetal force is perpendicular to velocity and causes uniform circular motion.

The larger the F c , the smaller the radius of curvature r and the sharper the curve. If you have time to collect sufficient data you can show that the centripetal force is directly proportional to the radius of the circular motion. Centrifugal force can be increased by increasing either the speed of rotation or the mass of the body or by decreasing the radius, which is the distance of the body from the centre of the curve. Centrifugal force is the force that makes something flee from the center.

At the bottom-most point, the centrifugal force acts vertically downward and the weight of the body acts vertically downward. Thus the tension in the string is maximum. This is where the rope is most likely to break. It should make sense that the tension at the bottom is the greatest. For an oscillating simple pendulum, the tension in the string is maximum at the mean position and minimum at the extreme position.

Complete step by step answer: The tension in the string of oscillating pendulum is maximum at the mean position and minimum at the extreme position. The centripetal force is always the same but part of this and a constant part — the weight of the object is supplied by the gravitation al pull of the planet.

The maximum tension is at the bottom. What is centripetal force in simple words? Can we create artificial gravity? Is centrifugal force stronger than gravity? Does centrifugal force cancel gravity? Do we feel centrifugal force on earth? Why is centrifugal force called a fictitious force? Why are they called fictitious force? Is Earth inertial or non-inertial? What is real force?

Why is the Coriolis force fictitious? Why Coriolis force is 0 at equator? What are 3 things that are affected by the Coriolis effect? What is the Coriolis effect short answer? What causes Coriolis effect?

How strong is centrifugal force? What is the other name of Coriolis force? I understand the explanation regarding the reference frames: if our body is the reference frame, and it is rotating, a fictitious centrifugal force needs to be made up to cancel the centripetal force and explain why we appear to be stationary in relation to ourselves.

However, if we are in a round up ride, we feel pushed againsts the wall, rather than towards the center of the ride, which would be the centripetal force.

So if centrifugal force is the fictitious one, wouldn't that be like saying that the force we feel pushing us againsts the wall is only in our minds? Suppose you're in a fast car and you stomp on the accelerator. You feel pressed into the back of the seat.

In which direction are you accelerating? Forward, obviously, but you feel a force pushing against your back. Now you turn a corner. Your seatbelt, and maybe the door next to you, press against your side. In this case, it's not so obvious, but it's inward, not outward. There is no centrifugal force here. In both cases, the side on which you feel the force is opposite the direction in which you are accelerating. The reason we feel that we are pushed outwards is due to inertia.

Inertia is the resistance to movement. It is measured by mass. When we have more movement, it makes it harder to get us moving.

In a car that is on a curve, for example, our inertia makes us want to keep on going forward. Going forward in this case would make us feel that we are being pushed outwards. Therefore, there is no centrifugal force in this case. Sometimes, the centrifugal force is referred to the reaction force of the centripetal force.

But usually, it refers to a ficitious force used to simplify thr mathematics. We say fictitious because the actual source of the centrifugal acceleration is somewhat indirect and the experience one has results from the unbalanced forces acting on the reference frame, not a force. Note, it is an acceleration not a force. For instance, imagine yourself on a swing.

The swing seat is constrained to move in a circular arc by two opposing forces, gravity and tension. Those are the only two forces acting on the seat, yet while swinging, the seat is not in an inertial reference frame.

So if you sit in the seat and constrain yourself to the seat i. The only place in the arc where you do not accelerate is same place where the seat would rest in equilibrium i.



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