The tag has no usage guidance.

learn more… | top users | synonyms (1)

3
votes
2answers
61 views

If we harvest energy generated by Coriolis Effect of the earth, will the earth slow down?

Coriolis Effect causes strong winds in the upper atmosphere, and it's purely due to differences in the linear velocity of Earth's rotation across latitudes. Now the Earth is spinning with the energy ...
0
votes
1answer
91 views

Why does Coriolis force act on North-South moving air?

Earth's axis is North-South; then why does air moving towards or away from North or South experience Coriolis force, since $\vec\omega\times \vec v$ will be 0 in this case?
7
votes
1answer
103 views

Why do icebergs move perpendicular to the wind?

I know it has to do with to Coriolis force and the Ekman layer but I didn't really understand the explanation. From Wikipedia: "Ekman transport, part of Ekman motion theory first investigated in ...
2
votes
2answers
81 views

Does Coriolis force effect a particle that has only a tangential velocity in a rotating frame?

Imagine a disc rotating at an angular velocity $\omega$, a particle on the disc which is attached to the disc so its also rotating at an angular velocity $\omega$. Now the particle has tangential ...
4
votes
1answer
2k views

Coriolis force in free fall

Does the coriolis force has any measurable effect in free fall from large heights? Take for example the sky diving experiment by F. Baumgartner who started from a height of about 40 km above New ...
9
votes
1answer
749 views

Coriolis force and Newton's third law

I would like to ask a stupid question here. If a body 'b' moving downward with a velocity $v$ in a rotating frame of reference with angular velocity $\omega$, and $\omega$ and $v$ not being parallel ...
2
votes
1answer
35 views

How to determine my position using Coriolis effect?

The Coriolis effect is the effect that causes wind and water and moving objects to curve clockwise in the northen hemisphere and anticlockwise in the southern hemisphere, so how to determine my ...
0
votes
1answer
35 views

If we assume a perfectly spherical and frictionless Earth and we bowl a bowling ball that will move in an apparantly curved path due to coriolis,

Is there a specific starting point and direction where the ball will travel in a circle or ellipse and perhaps never cross the equator? Presumably the ball keeps moving indefinitely, so what would ...
1
vote
1answer
197 views

Coriolis Effect vs airplane

So, if I build a highway from north pole towards equator and sit in a car, speed pretty fast towards it, I should feel force with the Earths rotation due to the different rotation speeds of this ...
0
votes
2answers
191 views

Coriolis force in free fall: Directions?

Inspired by this Phys.SE question, Coriolis force in free fall, I have to ask: Why does the Coriolis force act in the east-direction? I would say, if I jump from a high distance and look at the ...
2
votes
2answers
79 views

Difference between naive and Coriolis-force calculation

Consider the classical problem of dropping a coin from a tower at the equator of a planet without atmosphere and with spin $\Omega$: where in relation to a plumb-line will the coin land? When doing ...
0
votes
1answer
52 views

Deviation of free falling objects (Coriolis effect) using conservation of angular momentum

I read this pdf on non inertial frame, in particular I have a question on the deviation of free falling object due to Coriolis effect. Consider a ball let go from a tower at height $h$. The ...
0
votes
1answer
28 views

Confusion in understanding Coriolis force example

I am learning Classical Mechanics from a book called Newtonian mechanics by AP. French. The book tries to explain Coriolis force with an experiment as an example which confounds me. The book goes ...
1
vote
1answer
51 views

Rotational movement at the equator [closed]

What is the centripetal acceleration if you are moving with $100\frac{km}{h}$ on the equator if you are are moving a) east b) west? Shouldn't the acceleration be the same given with $a_{cp}=\frac{v^2}...
2
votes
4answers
136 views

Is this Coriolis Force explanation simplified?

As air moves from high to low pressure in the northern hemisphere, it is deflected to the right by the Coriolis force They use an example of a merry-go-round, which makes sense intuitively. An ...
0
votes
1answer
55 views

Flying with the help of Coriolis force

I had just started to learn about Coriolis force and an interesting thought occurred to me. Can you fly with the help of Coriolis force because when you run Coriolis force acts upward and the angular ...
6
votes
4answers
2k views

How much does the Earth's rotation affect a golf ball?

When launching rockets into space, they start straight but begin to lean, I assume due to the Earth's rotation. For something on a much smaller scale, such as a golf tee, is there a measurable ...
0
votes
3answers
93 views

Direction of deflection of Coriolis force on Earth

I'm a bit confused about Coriolis force direction on Earth. The observed deflection is to the right in the northern emisphere and to the left in the southern one. But what about an observer in the ...
0
votes
1answer
40 views

Coriolis object deflection and conservation of angular momenutum

I'm trying to understan kinematic inertial explanation of the apparent deviation of objects due to fictitious forces in rotating Earth. Take an object moving from the equator northwards, or ...
7
votes
3answers
184 views

Coriolis force and conservation of angular momentum

I'm trying to understand the relations between the existance of Coriolis force and the conservation of angular momentum. I found this example on Morin, which confuses me. A carousel rotates ...
4
votes
2answers
90 views

The two causes for the factor 2 in Coriolis effect

While reading this document on Coriolis effect http://empslocal.ex.ac.uk/people/staff/gv219/classics.d/Persson98.pdf, I saw the followig sentence Two kinematic effects each contribute half of the ...
0
votes
1answer
35 views

Effect of Coriolis force

Is Coriolis force fictitious in an inertial frame or not? If so can it be mathematically deduced using an inertial frame as reference?
13
votes
1answer
14k views

Derivation of the centrifugal and coriolis force

I was wondering how easily these two pseudo-forces can be derived mathematically in order to exhibit a clear physical meaning. How would you proceed?
0
votes
3answers
57 views

Physical interpretation of Coriolis terms in acceleration

Consider a reference frame which is rotating (for example on a carousel) and a steady inertial frame, with the same origin. $\vec{r}=\vec{r'}$ $\vec{v}=\vec{v'}+\vec{\Omega}\times\vec{r'}$ $\vec{a}=...
0
votes
0answers
54 views

From coriolis force, cyclone goes wrong direction

note, comment below (BowlOfRed) asked for more detail, so this is more a re-write than an edit. In an idealised weather system, there can be a high pressure area, and a low pressure, and air goes ...
2
votes
0answers
712 views

What is the relationship between Coriolis forces and Angular momentum?

Recently I did an assignment about helicopters, and during the oral exam we talked about Coriolis forces. I know where it comes from, and I've seen the derivation: Example In the case of helicopters, ...
3
votes
1answer
678 views

Coriolis deflection:- is it 4 times if the object is thrown up, compared to a drop? [closed]

A particle is thrown up vertically with initial speed, reaches a maximum height and falls back to ground. Show that the Coriolis deflection when it again reaches the ground is opposite in direction, ...
1
vote
0answers
64 views

Man on a rotating platform [closed]

A platform rotates in counterclockwise with angular velocity w. A man walks from the center of the platform to the border with constant radial velocity v' wrt the platform. $\mu_s$ is the static ...
4
votes
2answers
2k views

How do I experience Earth's movement?

We are told that Earth is spinning on its axis at 1037 mph— something that we don't usually feel because of the environment that moves with us as well. Is there any experiment with which we can know ...
25
votes
7answers
3k views

If I toss a coin, vertically, on the surface of Mars, will it land back in my hand?

When I toss a coin in Mars, is the planets atmosphere rare enough that I'd rotate with the planet (at its angular velocity), but not the coin?
3
votes
2answers
74 views

Would there be a “freefall zone” in the centre of a centrifugal artificial gravity?

In the novel Schismatrix, Bruce Sterling writes about people living on the inside of rotating cylinders (similar to Larry Niven's Ringworld and Iain M. Banks' Orbitals, but the atmosphere extends ...
4
votes
1answer
721 views

If a bullet is fired vertically upwards, when it comes back does it fall to the same spot? [duplicate]

What I'm basically asking is that if a body is projected with sufficiently high velocity so that it doesn't escape from the earth's gravitational field but reaches an appreciable height with respect ...
1
vote
1answer
42 views

Does Earth rotation effect planes? [duplicate]

What about the supposed aiming modifications when firing a weapon? According to my research, when firing a weapon you are supposed to aim a little to the right when firing northwards and to the left ...
0
votes
1answer
56 views

Is the Coriolis acceleration formula just an approximation?

The Coriolis acceleration given in textbooks is: $a_{cor} = -2\omega v$ When trying to understand the derivation, it seems as though this is just an approximation. And to illustrate this I give a ...
0
votes
1answer
80 views

Deflection of a freely falling body

Why Coriolis force acts on a freely falling body on earth as it is not in contact of earth surface? if a body being in contact of earth surface will suffer Coriolis force for earth's rotation but in ...
0
votes
0answers
13 views

Deflection of a freely falling object [duplicate]

why Coriolis force acts on a freely falling body on earth as it is not in contact of earth surface? if a body being in contact of earth surface will suffer Coriolis force for earth's rotation if an ...
0
votes
1answer
34 views

Relative magnitudes of pressure gradient force and Coriolis force at midlatitudes

In the midlatitudes, both Coriolis and pressure gradient forces are present in the atmosphere. Can a statement be made about which one of the two forces is bigger in this region?
0
votes
1answer
84 views

Explaining Coriolis force with vectors

Can Coriolis force and deflection of wind patterns towards their right in northern hemisphere and towards left in southern hemisphere be explained with the help of vectors?I have tried but could not ...
0
votes
1answer
50 views
4
votes
0answers
68 views

Would the ball hit the ground?

After lunch I normally take the stairs to my office at the fifth floor. The staircase is open in the middle and you can see right to the ground at level -2 (or -1, that doesn't matter too much) and ...
0
votes
2answers
398 views

Rotation of earth and helicopter [closed]

If in a helicopter, you have an altitude and you maintain that altitude without any motion will you revolve around earth in 24 hours due to coriolis effect as helicopter unlike airplanes is not ...
1
vote
1answer
109 views

How does Foucault's pendulum work in a place other than the poles?

I find it easy to understand how Foucault's pendulum works at the poles, the pendulum oscillates in a fixed plane and we, along with the earth, rotate around it. So it appears that the pendulum's ...
0
votes
1answer
34 views

Are the arms of a hurricane along wind direction?

Within any tropical hurricane satellite photo we see a typical swirl pattern of clouds. Are the arms of clouds we see aligned on the winds vector field? Or are they on the contrary perpendiculars to ...
1
vote
1answer
151 views

Coriolis force: why is pole-to-equator air flow eastly?

I have little knowledge in fluid dynamics, so this may be naive. But I have a question while reading a textbook about the Coriolis force, by which the rotation of the earth from west to east changes ...
1
vote
0answers
132 views

Orbital elevators and the Coriolis effect

Consider an orbital elevator simply modelled as a large mass in geostationary orbit (altitude approx 36,000km) around the Earth, connected to a point on the equator via a strong, light, likely ...
1
vote
3answers
660 views

Coriolis force on bullet vs airplane

Why do airplanes experience negligible Coriolis force while bullets experience the Coriolis force in long range shooting, even though the mass of airplane is much bigger than a bullet?
1
vote
1answer
97 views

Relative acceleration of two planets orbiting a star

Let us suppose we know the radii and periods of two planets' circular orbits around a star -say Earth, Venus and the Sun-, which allows us to calculate the planets' centripetal acceleration, ...
4
votes
1answer
396 views

Resemblance between Coriolis force and magnetic part of Lorentz force

If we interchange velocity with charge and omega that is rotation of a system with $B$, magnetic field, we get the same thing. Is there any deeper meaning to this same mathematical form?
3
votes
1answer
152 views

Rotation and fictitious forces

A bug eats through an apple and forms a vertical, infinitesimally thin canal parallel to the vertical diameter at a distance $\frac{R}{2}$ from the center. The apple rotates at angular velocity around ...
2
votes
3answers
2k views

Intuition and difference between centrifugal force & Coriolis force?

My book says that when a frame rotates uniformly, pseudo/fictitious force must be taken to count. This is centrifugal force. Also, while Googling, I found another pseudo force Coriolis force. ...