difficult physics for me to comprehend please help

[Marty Champions]

Why is it that if i have a jar with a seed in it and do a throwing motion we all know that the seed would rattle around at the speed i moved my hand , now.....
What about a huge airplain  goin 300mphwith a passenger tossing a baseball up, why doest the baseball hit the back of the plane at 300mph

Its the same scenario but different results

[king]

Because the ball is already going the same speed as the plane.

[The True Adonis]

Inertia of matter. What that means is that once accelerated no energy is needed to maintain the reached speed.

[Ron Harrigan]

Why is it that if i have a jar with a seed in it and do a throwing motion we all know that the seed would rattle around at the speed i moved my hand , now.....
What about a huge airplain  goin 300mphwith a passenger tossing a baseball up, why doest the baseball hit the back of the plane at 300mph

Its the same scenario but different results

The passenger isn't throwing the baseball at that speed.

[SF1900]

A similar question:

"I have a question that came up in a discussion with friends. If I throw a ball straight up in an enclosed train car moving with constant velocity, I believe the basic physics books say it will land in the same spot. But will it really? I think I can say that the answer is "not in the real world".

Answer:

Yes, the ball would land in exactly the same spot, whether robot or person. The air does not remember the original speed, and new air coming in does not keep its velocity, but settles down with the co-moving air. The speed it has is determined by the fan blowing it in, not by the speed of the train.

The reason is that the train pushes the air just as it pushes everything else. The air transmits the push by a pressure force, and there is no significant airflow inside the car when you start and stop, even at huge acceleration. Nothing is different from a stationary train, except during acceleration. The effect of acceleration will create a small pressure gradient in the air, and a density gradient, but these are insignificant, because the acceleration is slow.

This is counterintuitive to many people, but it is absolutely 100% true in the real world. Aristotle also confused things with air, despite the fact that Aristothenes, Archimedes, and other ancient scientists believed in some sort of inertia principle.and this type of thing

[Marty Champions]

A similar question:

"I have a question that came up in a discussion with friends. If I throw a ball straight up in an enclosed train car moving with constant velocity, I believe the basic physics books say it will land in the same spot. But will it really? I think I can say that the answer is "not in the real world".

Answer:

Yes, the ball would land in exactly the same spot, whether robot or person. The air does not remember the original speed, and new air coming in does not keep its velocity, but settles down with the co-moving air. The speed it has is determined by the fan blowing it in, not by the speed of the train.

The reason is that the train pushes the air just as it pushes everything else. The air transmits the push by a pressure force, and there is no significant airflow inside the car when you start and stop, even at huge acceleration. Nothing is different from a stationary train, except during acceleration. The effect of acceleration will create a small pressure gradient in the air, and a density gradient, but these are insignificant, because the acceleration is slow.

This is counterintuitive to many people, but it is absolutely 100% true in the real world. Aristotle also confused things with air, despite the fact that Aristothenes, Archimedes, and other ancient scientists believed in some sort of inertia principle.and this type of thing

let me word it this way
The ball should fly backwards because it isnt being accelerated but of course it does not...

[cephissus]

let me word it this way
The ball should fly backwards because it isnt being accelerated but of course it does not...

It was being accelerated, by your hand, which was being accelerated by your arm, which was being accelerated by your torso, which was being accelerated by your seat, which was... etc.

So, the ball was going the same speed as the plane.  In order to fly backward, a force would have to act on it.  The best candidate would be air resistance, but the air, too, is going the same speed as the plane.

[Ron Harrigan]

It was being accelerated, by your hand, which was being accelerated by your arm, which was being accelerated by your torso, which was being accelerated by your seat, which was... etc.

So, the ball was going the same speed as the plane.  In order to fly backward, a force would have to act on it.  The best candidate would be air resistance, but the air, too, is going the same speed as the plane.

No, obviously the ball was not going at the same speed as the plane. By your reasoning, the flight attendant pours orange juice into your cup at the same speed the plane is going. LOL.

[ChuckleHead]

A similar question:

"I have a question that came up in a discussion with friends. If I throw a ball straight up in an enclosed train car moving with constant velocity, I believe the basic physics books say it will land in the same spot. But will it really? I think I can say that the answer is "not in the real world".

Answer:

Yes, the ball would land in exactly the same spot, whether robot or person. The air does not remember the original speed, and new air coming in does not keep its velocity, but settles down with the co-moving air. The speed it has is determined by the fan blowing it in, not by the speed of the train.

The reason is that the train pushes the air just as it pushes everything else. The air transmits the push by a pressure force, and there is no significant airflow inside the car when you start and stop, even at huge acceleration. Nothing is different from a stationary train, except during acceleration. The effect of acceleration will create a small pressure gradient in the air, and a density gradient, but these are insignificant, because the acceleration is slow.

This is counterintuitive to many people, but it is absolutely 100% true in the real world. Aristotle also confused things with air, despite the fact that Aristothenes, Archimedes, and other ancient scientists believed in some sort of inertia principle.and this type of thing

everything in the enclosed moving car has been effected by the acceleration.
so if the ball is not going to return to the same spot because of the air pressure, the exact result would happen even if the car wasn't moving.

everything remains consistent. moving or not.

[Marty Champions]

Lots of mindfucking tonight

[smoothasf]

Acceleration.
This is even cooler, it is theory that the fastest you can go is the speed of light, but a train were invented that could go the speed of light and you were inside and threw a ball, would it move?

[Automation]

Falcon. This is basic stuff: Inertial frames of reference.

And this earth not rotating bilge you are spewing in another thread, I fear you may end up in wiggs territory if you're not careful.

[THE ARS]

Lots of mindfucking tonight

Mindfucking?

This is a question a young child would ask.

[FermiDirac]

Haven't read the thread, but I guess I entered the fray too late:

The ball travels at the same speed/direction as the airplane hence it will carry a speed vector of the same magnitude as the airplane.

This illustrates your problem

The larger rigid coordinate system could be Earth, while the moving system is the plane. While inside the moving coordinate system, you will not detect any speed you carry relative to the fixed system. This is why we do not detect that we travel thousands of miles per hour as the Earth spins around its axis and around the sun. This is also why the ball will move in the direction you throw it in while inside a speeding plane.

[pellius]

Why is it that if i have a jar with a seed in it and do a throwing motion we all know that the seed would rattle around at the speed i moved my hand , now.....
What about a huge airplain  goin 300mphwith a passenger tossing a baseball up, why doest the baseball hit the back of the plane at 300mph

Its the same scenario but different results

You have a very curious mind and a love of learning. How come you don't go to school, get a degree and make something of your life.

If you got a degree in science, a subject you seem most interested in, you  could write your own ticket.

[THE ARS]

How in the fuck could this dude get a degree?

This is an adult asking questions about something you know the first time you ride in a car.

[Disgusted]

No wind resistance. Try standing on top and moving train and see what happens.

[Rami]

nice how the getbig geniuses comes out of nowhere to scientifically explain this oh so vexing phenomenon
 

[calfzilla]

I learned this shit in 10th grade science class.

[FermiDirac]

nice how the getbig geniuses comes out of nowhere to scientifically explain this oh so vexing phenomenon
 

There are no geniuses on getbig, only bitcoin miners and meatheads.  

[Tapeworm]

Lots of mindfucking tonight

Oooh, I've got a good one.  Say you unwire a lathe's electrical box and remove upwards of 30 wires.  Naturally you label each one with a little tag and then you write a corresponding code on the little brass clamps on the electrical board.  Now you know where everything goes back again.

So in order to ensure it was wired right to begin with you take the now demounted circuit board (circa 1943) inside and decide to map the board with the multimeter.  But it's a pretty greasy affair so instead of letting 70 years of grease interfere with the mutimeter giving a true read you realize this is the perfect time to unwrap the new can of contact cleaner that's been waiting in the shed.

So you degrease the board and sit down to map it out.  And it's a good thing you're going to map it out and come to a full understanding of exactly why things were wired as they were because now there's none of your codes remaining on the brass clamps anymore since the contact cleaner washed them all away.

So on a scale of 1-10, how big of an idiot would someone have to be to do this?  Just hypothetically.

[pellius]

How in the fuck could this dude get a degree?

This is an adult asking questions about something you know the first time you ride in a car.

An intelligent and educated person no longer needs to go to school. It's for people who need to be educated. One of the problems is that young people are not interested in education. They prefer to spend the majority of their time staring at their cell phone txting and being on FB, IG, and whatever other social media is out there.

I doubt that Falcon spends much time on a cell phone. But he does have an interest in education. He's always thinking and wondering about things. Still has the curiosity of a child which most of us unfortunately lose as we fall into the 8-5 rut of our job and trying to keep our head above water. So it doesn't matter if you are on a high school level or a kindergarten level. What matters is that you are interested and motivated to expand your mind.

We all had to start somewhere.

Soar mighty Falcon. Soar!

[Marty Champions]

You have a very curious mind and a love of learning. How come you don't go to school, get a degree and make something of your life.

If you got a degree in science, a subject you seem most interested in, you  could write your own ticket.

i am halfway through quantam entanglements on stanford lectures from youtube

[Marty Champions]

No wind resistance. Try standing on top and moving train and see what happens.

how is the local space vector created ( is it just a lack of wind)l thus a time vector created as well? Cant have one without the other

[sync pulse]

I may be a masochist, but I will weigh in here;

When you throw the jar, you are accelerating it.  Making it go faster and faster until you release it.  (the same if it were a rocket and the engine cuts off)

Ignoring the friction of the air, the jar is now traveling through the air, with only gravity affecting it.  As gravity is affecting the jar, the air inside it, and the seed equally; As it falls, the seed and air will experience zero G or weightlessness. Until the jar hits the ground.  If you were looking at the jar with a pair of binoculars, you would see the seed is indeed moving at the same speed as the jar.  But if you had a television camera in the jar, you would see the seed floating in mid air, seemly motionless.

As far as the ball in the airplane and the orange juice pouring out, you would see the same thing.  Since the airplane is not falling, (ignoring the difference in the magnitude of G in the air as compared with ground level)gravity affects the ball and orange juice the same as being on the ground, as long as there is no acceleration in any vector. (It is moving smoothly through the air at a constant speed)

If the airplane were Wonder Woman’s and you could see the inside with binoculars, you would see the orange juice pitcher, the cup and the orange juice (and the ball) moving along with the airplane.  If there were a television camera, it would look the same as if the airplane were on the runway on the ground.


I know I am going to regret posting these videos as they will be misinterpreted almost surely…

Doppler:

I included the doppler because he is going to not understand how if the ball is going 300 mph + the thrown velocity, why is it not the same for light.