What Happened To The Concorde?

[Rogue Trader]

you, the coin, your wallet, and even your genitals are all travelling at super sonic speed as long as you are on that airplane

Think of your absolute speed, not the relative speed to the airplane.

 

[Glaringly]

Ok, your answer is correct from the science perspective. The problem is how to explain to the layman, what causes the coin to travel at the same speed as the airplane?

 

[Glaringly]

you, the coin, your wallet, and even your genitals are all travelling at super sonic speed as long as you are on that airplane

Think of your absolute speed, not the relative speed to the airplane.

The difference is the coin is up in the air and attaching to air in the plane! Which in layman view cannot hold. No?

 

[singveld]

The noise is the concorde's sonic boom because it is faster than the speed of sound. Technically a passenger in the travelling craft won't hear the sonic boom since he is also faster than the speed of the "boom" sound.

is there an weapon against enemy infantry, where launch it fly very low and create a sonic boom to deafen the enemy, an enemy who cannot hear well cannot fight well. or the mass of such subject is proportional to the loudness?

 

[Jah_rastafar_I]

Since you guys are on this topic and about the speed stuff. I have a question, which I have been asking many times.

If you toss a coin inside the airplane up in the air while it is traveling at super sonic speed, the coin landed in the exact same spot as if you are on the ground.

Why? I Know there is a science answer to it which is beyond my comprehension. Do any of you have a layman explanation?

This is i believe is explained in one of einstein's theories.

 

[Rogue Trader]

When the coin is up in the air, it is subject to inertia.

inertia will cause the coin to slow down a little bit.

 

[Glaringly]

When the coin is up in the air, it is subject to inertia.

inertia will cause the coin to slow down a little bit.

Ok, newton state the first law of motion as such, ie. inertia. You are totally correct to cite it.

However, me being a layman like to know exactly from a Ah Soh or ten year old kid perspective.

Sorry. Apologies I am still searching for that kind of answer.

 

[Rogue Trader]

tell ah soh. she always complain about Pap but still vote for them every 5 years. that's inertia.

 

[Glaringly]

tell ah soh. she always complain about Pap but still vote for them every 5 years. that's inertia.

Nice one.

 

[middaydog]

Nice one.

does theory of Momentum explain ?

 

[Cestbon]

Ok, newton state the first law of motion as such, ie. inertia. You are totally correct to cite it.

However, me being a layman like to know exactly from a Ah Soh or ten year old kid perspective.

Sorry. Apologies I am still searching for that kind of answer.

Now become science subject.

If the earth not spinning and no wind(vacuum) only earth gravity. The coin will land directly below the earth ground level even if you throw coin 18km above the sea level.
Happy with the answer.

 

[Glaringly]

Now become science subject.

If the earth not spinning and no wind(vacuum) only earth gravity. The coin will land directly below the earth ground level even if you throw coin 18km above the sea level.
Happy with the answer.

Of course not.

 

[Ramseth]

Ok, your answer is correct from the science perspective. The problem is how to explain to the layman, what causes the coin to travel at the same speed as the airplane?

Artificial maintenance of air pressure in the cabin. Try exposing the cabin to external natural air pressure by opening a door, then you'll feel what it's like to be flying at supersonic speed. If you or an object isn't strapped or affixed to the plane in flight, it'll be sucked off backwards. In fact, don't need to be at supersonic speed, subsonic jumbo jet speed is enough.

That's what the seat belt is for. It's not to secure you in case of a collision as in road traffic vehicles. It's to secure you to your seat in case of losing air pressure. That, and the oxygen mask too of course, to help you breathe.

 

[Glaringly]

does theory of Momentum explain ?

When you flick the coin up in the air, it generates a upward trust where it looses velocity and then pull down by gravity. During this time in the air, the coin is free floating and holding on to nothing. Considering the plane has move forward by miles during those seconds, won't the coin crash into the rear of the airplane?

Considering the other scenario where the coin is flick in an open top car, assuming it is shielded by the wind and travel at the same speed as the airplane, this time the coin will hit the ground at the exact same spot when it is toss, but the car would be several km ahead.

Both scenario are true. One is inside a compress body while the other is not. Why, in the first case, the coin can travel up and at the same time move forward with the plane?

 

[Glaringly]

Understanding car has now reach the speed of 1,000 kph during some test.

So, if there is no artificial air pressure. Will the driver of this car be suck back with windows close?

Artificial maintenance of air pressure in the cabin.
Try exposing the cabin to external natural air pressure by opening a door, then you'll feel what it's like to be flying at supersonic speed. If you or an object isn't strapped or affixed to the plane in flight, it'll be sucked off backwards. In fact, don't need to be at supersonic speed, subsonic jumbo jet speed is enough.

That's what the seat belt is for. It's not to secure you in case of a collision as in road traffic vehicles. It's to secure you to your seat in case of losing air pressure. That, and the oxygen mask too of course, to help you breathe.

 

[middaydog]

Considering the other scenario where the coin is flick in an open top car, assuming it is shielded by the wind and travel at the same speed as the airplane, this time the coin will hit the ground at the exact same spot when it is toss, but the car would be several km ahead.

No, when you toss the coin up, imagine you are at the open deck of a pick up traveling at the speed of 80 kmph, there are two forces that act on the coin one, the coin will travel upward by the speed that your thumb can flip, two, the coin will also travel forward the car direction at the speed of 80 kmph ( of course this will slow down initially ) by the momentum of the car

for you who sit on the pickup the coin travel in straight line up and down, but for someone who stand at the roadside look at you _ the coin will travel in the arc line

 

[Ramseth]

Understanding car has now reach the speed of 1,000 kph during some test.

So, if there is no artificial air pressure. Will the driver of this car be suck back with windows close?

He won't be, there's always the seat and seat belt to hold him. The effect is only the speed effect on the ground. It's the same natural ground air pressure both inside and outside the car anyway. Note that even at 100 k.p.h. whoever and whatever in the car would be thrown forward in a sudden brake (i.e. sudden loss of speed). In an aircraft at high altitude, the air pressure outside is very low. That's a deadly combination of high speed at low air pressure effect.

Even motorcycles at high speed, the motorist won't be flung off as long as he keeps his leg grip and hand grip on the machine properly. Lose the grip and he'll be flung off backward as the machine shoots forward.

 

[Glaringly]

So, instead of tossing the coin by the flick of the finger, let say you hurl the coin up in the air with the full force of your hand traveling upwards by 20 metres, will the coin still travel forward at 80 kmph?

No, when you toss the coin up, imagine you are at the open deck of a pick up traveling at the speed of 80 kmph, there are two forces that act on the coin one, the coin will travel upward by the speed that your thumb can flip, two, the coin will also travel forward the car direction at the speed of 80 kmph ( of course this will slow down initially ) by the momentum of the car

for you who sit on the pickup the coin travel in straight line up and down, but for someone who stand at the roadside look at you _ the coin will travel in the arc line

 

[Glaringly]

So, back to the coin, if you toss inside the car which travel at subsonic speed. It will move forward at the same speed as the car while it is floating in the air. And why?

He won't be, there's always the seat and seat belt to hold him. The effect is only the speed effect on the ground. It's the same natural ground air pressure both inside and outside the car anyway. Note that even at 100 k.p.h. whoever and whatever in the car would be thrown forward in a sudden brake (i.e. sudden loss of speed). In an aircraft at high altitude, the air pressure outside is very low. That's a deadly combination of high speed at low air pressure effect.

Even motorcycles at high speed, the motorist won't be flung off as long as he keeps his leg grip and hand grip on the machine properly. Lose the grip and he'll be flung off backward as the machine shoots forward.

 

[Ramseth]

So, back to the coin, if you toss inside the car which travel at subsonic speed. It will move forward at the same speed as the car while it is floating in the air. And why?

In an enclosed carriage, the air inside the enclosure is travelling at the same speed as the carriage. Wind down the window to let the air flow and see what happens. Your hair and clothes are also threatening stay behind even if it's not windy outside at all.