# Questions tagged [centrifugal-force]

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### Why does the friction act on the inward direction when a car makes a turn on a level road?

I tried looking this question up online but am left a little confused with all the answers, and the diagrams. When a tire of a car negotiates a turn in the road, there exists friction which is ...
29 views

### Equator water pipeline flow at sea level?

If a water pipeline was built at sea level eg. Gulf of Mexico and the other end was at sea level in southern Chile, then the pipeline was primed with pumps, would the water then gravity feed and flow ...
5k views

### What is the reason behind water not falling from a bucket at the top of loop?

A bucket is rotating in a uniform circular motion. When the bucket is at the topmost point in the loop, the water does not fall. At this point both the tension and gravitational force is acting on the ...
67 views

### If you have a conserved quantity, why can't you use it to eliminate a variable in the Lagrangian? [duplicate]

Suppose, for example, we take a particle in polar coordinates $(r, \theta)$ with a central force, so $U = U(r).$ The Lagrangian is $$\mathcal{L} = \dfrac12 m (\dot{r}^2 + (r\dot{\theta})^2) - U(r).$$ ...
101 views

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### Question on equivalence of acceleration and mass with respect to gravity

Layman’s question here. Let’s say I’m standing on the inside rim of a rotating space station spun at right rate to produce earth-like gravity. Does the spinning warp space time? If so, how can a small ...
39 views

### Centrifugal force on spinning black hole?

I saw the term spinning black hole popping up everywhere so my question do spinning black hole behave similarly to say a planet where it bulge in the equatorial and compress at the poles? what ...
362 views

### How to make a boy fall from the merry-go-round?

I want to make this boy fall in the game and not able to figure out a way or formula which is responsible to make this boy fall from merry go round We know centrifugal force and centrifugal ...
60 views

### When we ride a bicycle then we can balance it but when we apply brakes then we need to put our legs down else we may fall, why? [duplicate]

I got this idea while sitting and studying physics in school but not getting answer please try to answer it.
8k views

### Does artificial gravity based on centrifugal force stop working if you jump off the ground?

In an answer to another question of mine, concerning gravity, there was a link to a video about creation of artificial gravity, based on rotation. The question I have might be silly (or with an ...
296 views

### If centrifugal force is fictitious, what force is real in its stead?

Here's an example illustration: The way I understand it, when the car starts turning, the centrifugal force at first does not exceed the force of friction, which allows the car to stir. But at some ...
166 views

### Deriving effective potential energy from the Lagrangian of a two-body system [duplicate]

I'm having some issues understanding how the effective potential energy of a two-body system is derived from the Lagrangian of the system. Specifically my issue is with one step... Suppose we are ...
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### What is the dynamics of centrifugal force in non-inertial system? [closed]

I am trying to intergrate the centtifugal force and the integral of φ(dφ/dt)^2 appears in polar coordinates. Does anyboby know if i'm doing something wrong or if i'm not, does anyboby know the ...