Originally posted by Placidity
You did lie, still are.Where did I say that? Show me where I said pound-force did not exist? Prove it once and for all, or stop lying.
You would have proven me wrong the moment you prove that "TON" (not pound-force, which is irrelevant) is a measure of force. Do it, or concede.
How is pound-force relevant to Spider-man stopping the train again?
I am not wrong. It is you who are being adamant.
Basically, this is what happened:
You: "...tons of force".
Me: Um "ton" is not a measure of force.
You: Pound-force is a measure of force.
Me: Ok ton is not pound-force.
You: You are arguing "semantics"
Me: No, "ton" and "pound-force" are totally different things, and you know it. I don't see how you can claim to have any understanding of physics if you don't see the difference between "ton" and "pound-force". In fact unless you are retarded (which I don't think you are), you'd be able to tell the difference. Try to talk about pound-force as much as you want - Ton is not a measure of force, it is a measure of mass.
I already know where this is going, you're going to close you eyes and shout "blah blah blah pound-force exists, you were wrong".
I feel as though you didn't even read my post.
I posted a link and everything that allows you to convert forces to different forms of force measurement which include many "ton-force" measures.
Guess what my advanced physics professor did after figuring out the average force applied to the train? He converted it to pound-force. Guess what he did after that? He converted it to ton-force.
Here's why I am so adamant about this: I've taken multiple physics courses and part of the "assignments" was converting our answers from pound-force, ton-force, newtons, etc.
On top of this, I've provided 100% clear evidence that pound-force, and by extension, ton-force, are existing.
I saw that you're arguing from another incorrect perspective.
Tons of force ton-foce. Yeah, they exist.
Here's why you're not understanding it:
pretend one object is exerting 10 tons force and an opposing force of 2 tons force meets it:
10 ton-force = 2000*10*(32.16ft/s^2)
2 ton-force = 2000*1*(32.16ft/s^2)
To stop that ten-ton force, it would take 5 seconds.
The way I was working the math out, I ended up dividing what I thought was the correct calculation…in which I simplified like terms by eliminating the acceleration vector. (which is acceptable.)
That's why I said the following:
Originally posted by dadudemon
Force can be measured in pounds and then be converted to tonnage force by dividing by 2000, this is fact. However, that's not really what I did. I assumed that work was done already and guessed as to why the numbers worked out so well.The real number I came up with was actually sometihng like 9000 kilograms of force AFTER I did my conversations.
I tried to reverse work it (work it backwards) based off a probably incorrect recollection of what I had done on it, in the past.
You can argue that the math was carried out incorrectly, because it was. You can say I eliminated like-terms incorrectly, because I might have. However, you cannot say tons as a unit of force, does not exist. Which was may point from the beginning of the conversation. (I incorrectly recalled the argument as pound-force...so what. It doesn't change my point that you wouldn't admit when you were obviously wrong.)
You chimed in with comments that seemed left field and were only made with the sole purpose of clowning me when no one would really know the wiser. It really did seem like you were trolling with statements like, "ton is not a unit measure of force", "Force is measured in newtons noob", or "Force is not measured in tons. This is fact."
With statements like those, you were obviously ignorant, or you were trolling. Can you conclude with anything else other than those two items? (I'd like to think it was a little of both, because your posts are full of condescension and contain incorrect statements.)
BTW, I did the correct math later on in the thread, from scratch. Something you refused to do that I did anyway. I told you that if my math was so wrong, you do it and prove me wrong. You didn't do it. You copped out with a "obviously x so I don't have to do y" statement.
Originally posted by dadudemon
250 tons moving at 50 mphslows down to 0 mph in 60 seconds
what force was applied to the moving train to stop it?
250 tons = 250*2000lbs = 500000lbs
2.2 lb = 1 kg
500000/2.2 = 227272.7 kg
50 mph = 5280ft*50 = 264000 feet per hour.
we need feet per second.
264000/60minutes/60seconds = 73.33 feet per second.
1 meter = 3.28 feet
73.33/3.28 = 22.35 meters a second
/60 to get negative acceleration, or, commonly called deceleration.
22.35/60 = .3725 meters a second a second.
So, here everything is in metric units.
227272.72 KGs moving at 22.35 meters a second.
It is stopped in 60 seconds. What is the force applied to the train to get it to stop.
f = M*a
m = 227272.72
a = 22.35
f = 84956.09 KGs a second a second.
about 85 kilonewtons of force.
convert to tons.
93.69 tons.
I learned from this that:
1. You change your arguments to be right, and you're still wrong in doing so.
2. You won't admit that you are wrong and I do. I've admitted fault twice in the very thread. You claimed I never admit fault, which I obviously do and did before you made your first derisive post in this thread. I mentioned fault in the Spiderman Yu-law thread, as well. 😬
3. You purposefully argued word semantics and ignored my actual points, just to be right (becauase I incorrectly recalled our debate being over pound-force instead of ton-force). That's really lame, imo. (Don't you agree?)
4. Not only does a unit force exist in tons, force is not JUST measured in newtons, like you said.