- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
0
Posted on 4/11/24 at 10:14 am to LNCHBOX
quote:
It absolutely can. Draw a free body diagram of the plane. Draw all forces exerted on the plane along the X axis. Did you draw any horizontal forces caused by the wheels?
I want you to engineer this device that is able to match speed like this question asks. This is going to make so much money.
Posted on 4/11/24 at 10:15 am to Dam Guide
quote:
I want you to engineer this device that is able to match speed like this question asks. This is going to make so much money.
I would deflect away too
Posted on 4/11/24 at 10:15 am to Street Hawk
This thread is so stupid, Twitter/X took the link down.
Posted on 4/11/24 at 10:19 am to LNCHBOX
quote:
I would deflect away too
Ok, just do what Mythbusters did and put speedos on both the plane wheels and the cloth speed underneath the wheels and show the data.
Posted on 4/11/24 at 10:19 am to Dam Guide
quote:
Ok, just do what Mythbusters did and put speedos on both the plane wheels and the cloth speed underneath the wheels and show the data.
Did you draw the diagram yet? OR you still just keeping your head in the sand?
Posted on 4/11/24 at 10:26 am to LNCHBOX
quote:
It absolutely can. Draw a free body diagram of the plane. Draw all forces exerted on the plane along the X axis. Did you draw any horizontal forces caused by the wheels?
His point is that for the plane to move forward the wheels HAVE to rotate faster than the conveyor belt, thus violating the hypothetical.
Posted on 4/11/24 at 10:26 am to Dam Guide
quote:
No, again I am saying we cannot engineer something to exactly match speed. We are always playing catch up, so either we are taking off, rolling off the back, or breaking something. Question cannot be answered in the real world as written.
Agreed.
The question is trying to divide by 0.
Of course the engines are going to thrust the plane forward because they are thrusting against the atmosphere.
And if the plane is being thrusted forward on the conveyer belt, then the conveyer belt is not matching the speed of the wheels (which makes the question broken on its premise)
Posted on 4/11/24 at 10:27 am to UpToPar
quote:
His point is that for the plane to move forward the wheels HAVE to rotate faster than the conveyor belt, thus violating the hypothetical.
And what force would that be exerting on the plane to counter the thrust? Draw it for me.
Ok fine, if we turn our brains off and ignore all of reality, the plane will just sit there for.... reasons. Yall happy?
Posted on 4/11/24 at 10:27 am to LNCHBOX
quote:
Did you draw the diagram yet? OR you still just keeping your head in the sand?
Done, your turn...
Posted on 4/11/24 at 10:28 am to UpToPar
quote:
His point is that for the plane to move forward the wheels HAVE to rotate faster than the conveyor belt, thus violating the hypothetical.
You ever hold a hot wheels car on a treadmill and make it go forward or do you think the laws of physics render that act impossible
Posted on 4/11/24 at 10:30 am to Dam Guide
quote:
Done, your turn...
You can't defend your position with theory and you ignore physical experiments that don't say what you want them to. There will be nothing that appeases you. You a flat earther as well?
Posted on 4/11/24 at 10:31 am to FutureCorridor49
quote:
You ever hold a hot wheels car on a treadmill and make it go forward or do you think the laws of physics render that act impossible
Do it. Track RPM of the wheels on the hot wheels car when you do it.
Posted on 4/11/24 at 10:32 am to Dam Guide
quote:
Do it. Track RPM of the wheels on the hot wheels car when you do it.
You're the idiot arguing against physics, you do it.
Posted on 4/11/24 at 10:33 am to LNCHBOX
quote:
And what force would that be exerting on the plane to counter the thrust? Draw it for me.
The friction force would be negligible with respect to the force of the engines. But you're missing the point (at least the one I'm arguing). The hypothetical is impossible to test in the real world. Instantaneously, both the wheels and the treadmill would increase their speed exponentially to infinity.
Posted on 4/11/24 at 10:34 am to LNCHBOX
quote:
You can't defend your position with theory and you ignore physical experiments that don't say what you want them to. There will be nothing that appeases you. You a flat earther as well?
I can defend my position with real world examples. Take generators at a dam for instance. We are constantly chasing speed matching with governors.
Posted on 4/11/24 at 10:35 am to FutureCorridor49
Paper planes immediately fall straight down when you try to throw them because they don’t have any wheels to push them off the ground first.
Posted on 4/11/24 at 10:36 am to FutureCorridor49
quote:
You ever hold a hot wheels car on a treadmill and make it go forward or do you think the laws of physics render that act impossible
Yes. And every single time the hot wheels car moves forward the wheels are spinning faster than the treadmill. It's literally the only way the hot wheels car can move forward.
This isn't difficult. If you have a 10 foot long treadmill and set it for 5 mph and climb on in the middle of the treadmill. To remain in the same spot you have to run exactly 5 mph. To move forward on the treadmill you have to run faster than 5 mph.
Posted on 4/11/24 at 10:36 am to UpToPar
quote:
The friction force would be negligible with respect to the force of the engines.
Agreed, so let's ignore the force due to friction.
quote:
The hypothetical is impossible to test in the real world. Instantaneously, both the wheels and the treadmill would increase their speed exponentially to infinity.
Absent the forces of friction, there are no horizontal forces to counteract the thrust produced by the engines; therefore the plane will absolutely move, and take off given enough length of runway.
quote:
But you're missing the point (at least the one I'm arguing).
If the point is that we have to ignore how planes move, I'm not missing it. I'm ignoring it.
Posted on 4/11/24 at 10:37 am to Dam Guide
quote:
I can defend my position with real world examples.
quote:
Take generators at a dam for instance. We are constantly chasing speed matching with governors.
Yes, totally related scenario to thrust overcoming negligible frictional forces
Page 9 of 26
Popular
Back to top
Follow TigerDroppings for LSU Football News