Can an object travelling really fast catch friction?

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Discussion Overview

The discussion revolves around the concept of whether an object, specifically a soccer ball, can catch fire due to friction when traveling at high speeds. Participants explore the conditions under which this might occur, including the material properties of the soccer ball and the necessary velocities.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the feasibility of kicking a soccer ball hard enough to ignite it and asks about the speed required for this to happen.
  • Another participant raises two questions regarding the limits of kicking force and the material composition of the soccer ball, suggesting that the material's properties affect its ignition temperature.
  • A participant mentions that airplanes begin to experience airframe heating at around Mach 2 (approximately 1400 mph), implying that similar speeds might be relevant for the soccer ball.
  • One participant asserts that if the soccer ball is moved fast enough, it could indeed burst into flames, referencing the extreme conditions during space shuttle reentry as a hypothetical scenario.
  • Another participant compares the situation to tracer rounds, which can ignite due to their high speed, although they clarify that tracer rounds burn due to their chemical composition rather than friction.

Areas of Agreement / Disagreement

Participants express differing views on the conditions necessary for a soccer ball to catch fire, with some suggesting that speed alone is sufficient while others emphasize the importance of material properties. The discussion remains unresolved regarding the specific speed and conditions required for ignition.

Contextual Notes

Participants have not reached a consensus on the exact speed or conditions under which a soccer ball would ignite, and there are unresolved questions about the material properties and their effects on ignition temperature.

Saruwatari
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let's say i kicked a soccer really strong(and let's say i have insanely super human strength) , is it possible for the soccer ball to catch fire , and if it is at what speed?
 
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Let me answer you with two questions:
(1) How hard could you kick a soccer ball without bursting it?
(2) What material is a soccer ball made of and what happens to that material as it warms?
 
Airplanes have to be traveling about mach 2 (1400 mph) before they start to worry about airframe heating.
 
If you get the soccer ball moving fast enough, it will most certainly burst into flames.

Roll down the window on the shuttle and hold your soccer ball out in the wind during reentry, and your soccerball will quickly look like a very large, neglected marshmallow in a campfire.

You don't have to be going that fast though, the temperature at which the soccerball bursts into flame is simply the ignition point of whatever it is made of. Leather?

http://www.tcforensic.com.au/docs/article10.html#2.1.1" (lower than I thought!)

Now all you need so is get someone to calculate the velocity that would create that temp on an object that size and shape.
 
Last edited by a moderator:
just think of a tracer round

which is a actual example of something flying so fast it catches fire
 
sunnyrays said:
just think of a tracer round

which is a actual example of something flying so fast it catches fire

What? :eek: They're made with magnesium or phosphorus! They're not burning due to friction!
 

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