Originally posted by Placidity
The site also talks about Spider-man's free fall and hitting the roof. He landed at 88 miles per hour and got up without any serious injuries. Another plus to his durability.
Spider-man's durability is way the **** up there. The being pounded on by 7-8 story Sandman pretty much speaks for itself.
Originally posted by Robtard
This crap again?When Dr. Octopus breaks the controls of the train, it's moving at an initial speed of 35.76 m/s (80 mph). Each car of the train is a 2200 series, as according to http://www.chicago-l.org/multimedia/Spiderman2/. The mass of one car of the train is 21,500 kg (47,399 lbs), as according to http://www.chicago-l.org/trains/roster/2200.html, and since the train has 6 cars total, its total mass is 129,000 kg (284,396 lbs). Assuming there's 20 passengers in each car of the train, and assuming they all have a mass of 67.5 kg (149 lbs), the total mass of the train is 137,100 kg (302,254 lbs). Finally, the time the train was stopped was found to be 46 seconds. Since we know that the train ends up completely stopped, we can calculate the acceleration of the train over the time that it is stopped, using the formula a = (v–vo)/t: a represents the acceleration, v is the final velocity, vo is the initial velocity, and t is the time over which the object is accelerated.
a = (v–vo)/t = (0–35.76 m/s)/46 s = -0.78 m/s2
In this case, the acceleration is negative, since the train is being slowed down rather than sped up.
Using the acceleration and the total mass of the train and its passengers, we can calculate the force Spiderman exerts to stop the train (tension in his web). We can calculate this by applying Newton's Second Law of Motion, where ΣF = ma. ΣF is the net force (in this case, tension), m is the mass, and a is the acceleration.
ΣF = ma = (137100kg)(-0.78 m/s2) = -106,938 newtons
In more conventional units, 106,938 newtons is equal to 24,041 pounds-force, or 10,905 kilograms-force.
As a bonus, we decided to calculate the total distance the train traveled from the time Dr. Octopus destroyed the controls to the time Spider-Man stopped it. We can do this using the formula s = vot + ½at2: s is distance, a represents the acceleration, vo is the initial velocity, and t is the time over which the distance is traveled.
s = vot + ½at2 = (35.76 m/s)(46 s) + ½(-0.78 m/s2)(46 s)2 = 819.72 meters
That's the same exact math I did. I came up with 85 Kilonewtons, they come up with 107 Kilonewtons.
😐
The difference is the speed of the train and weight. I found a website that said a passenger train weighs 250 tons, or 500000 lbs. I estimated the speed at 50 MPH and the length of time he spent stopping it at 60 seconds.
And none of you commented on it, despite my math being correct. 😐
Originally posted by Robtard
Though impressive, I think it's underrated. It doesn't factor in that Spider-man would have had to overcome the driving force of the diesel-powered electric engines which [combined] are rated at several thousand horsepower, on-top of the trains mass and speed.
Why does the train stop, after Spiderman stops exerting force? PIS?
Originally posted by Robtard
Doc Ock first set the lever to max speed (you see the train surge forward) than ripped it out; the Train Conductor then said "I can't stop it", meaing the train as actively being pushed, not just going with inertia.
This I agree with. However, at some point, the engines stopped. Or else the train would have kept going over the edge.
Now, there may be some sort of emergency mechanism to prevent the train from going any further once it reached a certain spot on the dead end track. An emergency stop, if you will, or an emergency engine stop.
Originally posted by Placidity
^ Well its either your speculation or that the writers didn't really think about every minute detail.
In other words, PIS.
Edit - You'd think actualy stopping the train from "locomoting" itself would be an important plot point, though. Not a minute detail. That's a pretty big and important portion of him "rescuing" them. There has to be some sort of resolution on stopping the broken controls, especially when it was a plot point for ol' spidey to overcome.
Originally posted by dadudemon
Why does the train stop, after Spiderman stops exerting force? PIS?This I agree with. However, at some point, the engines stopped. Or else the train would have kept going over the edge.
Now, there may be some sort of emergency mechanism to prevent the train from going any further once it reached a certain spot on the dead end track. An emergency stop, if you will, or an emergency engine stop.
The writer just wrote in that Spider-man used max effort to stop a train(hence his total exhaustion), didn't get into every minute detail.. But realistically, if the counter-force exerted was greater than the engines output, the engines would likely stall and shut off.
Yes, most logical is Spider-man stalled the engines, ie forced them off. Then it was a matter of ovecoming the mass/inertia of the train. So it's really two feats of uber-strength rolled together. Thier math and your math didn't adjust for the engines horse-power, so the number should/would be higher.
There is/was, but Doc Ock destroyed it when he ripped out the lever. The Train Conductor frantically pressed that red button (the kill switch), but it was out of order.
Originally posted by Robtard
The writer just wrote in that Spider-man used max effort to stop a train(hence his total exhaustion), didn't get into every minute detail.. But realistically, if the counter-force exerted was greater than the engines output, the engines would likely stall and shut off.
Okay, I'll buy that.
Originally posted by Robtard
Yes, most logical is Spider-man stalled the engines, ie forced them off. Then it was a matter of ovecoming the mass/inertia of the train. So it's really two feats of uber-strength rolled together. Thier math and your math didn't adjust for the engines horse-power, so the number should/would be higher.
I don't know as much about cars compared to someone like Quiero Moto (Mota?), however, I am not sure the engines would have shut off. Wouldn't they just "peel-out" instead of stall? I don't think those trains are manual transmissions. I guess a automatic CAN stall. I dunno.
Originally posted by Robtard
There is/was, but Doc Ock destroyed it when he ripped out the lever. The Train Conductor frantically pressed that red button (the kill switch), but it was out of order.
I'm talking about an external mechanism to the engineers cab, itself. I saw it in that new movie that had John Travolta in it. (Sad that some "facts" I know come from movies.)
There was a "stop" mechanism that the "train" had available at Taking of Pelham 123. They had to disable that mechanism, which was wireless or something like that, in order to get the train to keep driving.
But, I'll take the engines being stalled, as well.
Originally posted by Rogue Jedi
Could Gabe or YuLaw have stopped the train, or held up the cable car like Spidey did?
Dude Ellen Ripley and Elastigirl from Incredibles probably could have held onto that cable car. Not not kidding either. As ridiculous as those gripping feats were, they still happened.