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Split Thread The validity of classical physics (split from: DWFTTW)

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It doesn't. The belt is trying as best it can to pull the cart off the back end of the treadmill. If the cart were a brick, it would succeed. In addition, when the treadmill is tilted up, gravity is also trying to send the cart off the back end of the treadmill. If the cart were a billiard ball, it would succeed even if the belt wasn't moving. With two things both trying to send the cart off the back end, what keeps the cart from doing so, and what in fact will send the cart off the front of the treadmill if there isn't a spork there to stop it? It's the fact that the cart gets some restraint from the air, which means that the wheels have to turn because the cart isn't backing up as fast as the belt would like it to. And that turning of the wheels is leveraged into prop rotation, which drives the cart forward. There is no forward thrust coming from the wheels/belt interface.

On page 7 of the rail book it shows slip to the rear of the axle.
How can a belt do that? The 'locked' region cannot drive the wheel forward of itself, even if the were the way the wheel were driven.
 
BTW Humber, why DOES your graph of balloon speed go to 1 when balloons don't reach windspeed?

I think if you can't see that, you are disqualified from comment, Mender. Sorry, Captain.
 
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Humber never seems to sleep, and his thinking is delusional and paranoid. That is consistent with methamphetamine abuse.

Banging the meth drum again Cored.
(1) Something I don't understand
(2) Not within my experience
(3) What is outside my experience?
(4) Drugs.
(5) Go with that.
 
On page 7 of the rail book it shows slip to the rear of the axle.
How can a belt do that? The 'locked' region cannot drive the wheel forward of itself, even if the were the way the wheel were driven.

Once again Humber, You can repeat that delusion as many times as you want. It's still a delusion.
 
I think if you can't see that, you are disqualified from comment, Mender.

No, not Mender- eye sight going?

Yes, I know why it reaches one- because any unpowered (and a hot air balloon IS unpowered laterally) object in the air accelerates to the speed of the wind.

And, OH yes! It's Monday! That's three weekends you've had to produce your cart video, Humber! You said you would (you've said a lot of things) so where is it?
 
100 PAGES!! Is this a record or what!

:bcake::wave1



Where humber is RIGHT

  1. "You need constant force and energy to maintain riverspeed." #2

  2. Zen: "When there is no wind, the belt has no meaning." #1089

  3. A rare moment of doubt: "The problem of the orange bothers me. When I move it either with the belt, or against the belt, it seems to gain KE w.r.t. the belt and ground by equal amounts." #1105

  4. Struggling to understand: "The cart's frame is tenuous, because it would seem that it is both in the belt and windspeed frames." #1214

  5. Assertion = Evidence: "Windspeed is the same "frame" as being still on the ground in still air. This too I have claimed. This is evidence." #2738

  6. "The boat will reach a finite speed, lower than the water. This speed is the solution to the simultaneous equations of the forces driving the boat, and that of drag. The air will reduce that speed, but even in a vacuum, waterspeed will not be reached." #136

  7. "Motion relative to the supermarket belt is also relative to the ground. Both directions yield the same KE, if viewed from belt or ground." #3053

  8. "The force is approximately linearly proportional to the relative velocity of chute and wind." #2951 #3259 [post= 4400937]#3263[/post]


    [*] "For a such harmonic motion dv/dt is greatest at zero crossing." #3081


    [*] "The KE of two bodies may remain the same (relative KE = 0) but gain 1000 fold wrt another." #?


    [*] "A treadmill belt can't be a "frame of reference." #18


    [*] "Objects that have the same "velocity" have the same "frame". #26


    [*] "The KE goes with the moving body." #77


    [*] "A balloon can raise its altitude, and gain potential energy. When descending, that energy is converted to lateral velocity. " #147 #447


    [*] "If in free-fall inside an aircraft, the simple act of lifting your arm and measuring the force, will tell you that you are in a gravitational field." #3255


    [*] "If you are stationary in a gravitational field, then you will do work against that field should you raise your arm. That does not change if you jump from a table, or fall in an enclosed elevator." #3327


    [*] "Free-fall is not zero-g." #3393 #3396


    [*] "Two standard mass-sensing accelerometers, one on each end of a bar. Spun in zero-g, they would show a constant output as a result of that acceleration. In free-fall towards the Earth, each acclerometer will either be moving with gravity or against it, with each revolution. Easily detected." #3361


    [*] "Forward motion by a driven wheel is not possible unless the contact patch with the road is to the rear of the axle. This is irrefutably so.
    "
    #3441 #3459


    [*] "It [the cart on a treadmill] is capable only of one speed. The wheels can only go slower thant the belt, but not fqaster, so they must be slipping." #3767


    [*] "If you park your car on an incline, but facing up it, where do you think the contact patch is? Yes, behind the axle." #3071





Now I suppose we will need another 100 pages to clean up the mess :)
 
On page 7 of the rail book it shows slip to the rear of the axle.
How can a belt do that? The 'locked' region cannot drive the wheel forward of itself, even if the were the way the wheel were driven.

Think of the slip region as a return to state.
 
No, not Mender- eye sight going?

Yes, I know why it reaches one- because any unpowered (and a hot air balloon IS unpowered laterally) accelerates to the speed of the wind.
No, my graph contradicts that, but we all know about some people's reaction to that!

And, OH yes! It's Monday! That's three weekends you've had to produce your cart video, Humber! You said you would (you've said a lot of things) so where is it?

"This is your Captain whining..."
 
Think of the slip region as a return to state.

As I said in anticipation, Mender, " no matter how you interpret it" you cannot describe how the treadmill belt induces those force in a wheel, so as to drive it forward.
 
It wasn't me who asked the question, slumberer.

Well you see, the graphs and calculations show that behavior cannot happen on the treadmill. Earlier, you denied my skater argument. My post is the rebuttal of that.
 
Like I said humber, what's the next topic? The old ones are getting - well, old. Your only redeeming quality is as a foil.
 
No need, Dempster. The power out cannot exceed the power in. The prop and wheels are directly mechanically connected, so the force from wheel and prop must be the same. The velocity of the wheel is determined by the belt, Dumpster.

Very slowly now Humber;
The power input to the cart is ....
The power output by the cart is...
 
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"This is your Captain whining..."


I'll take this as meaning, having undertaken to do something, you've found out it's impossible and now just want it to go away.

"Negative drag" and "Gas Cavitation" spring to mind at once.

You are wrong about these things Humber, and your instant recourse to insults when they are mentioned is a clear indication that you know it, but won't admit it.

BTW, a graph showing a balloon accelerating till it's velocity is the same as the wind shows it doesn't?

strange place that Humberverse....
 
Like I said humber, what's the next topic? The old ones are getting - well, old. Your only redeeming quality is as a foil.

Cling wrap.

You have not manged to answer what is already posted. However, I have been talking to Pirate Pete. He is very angry with Walmart.
 
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