Elastic Collisions

[poncherelli2]

Does anyone a real life example of a perfectly elastic collision, this is for a stupid physics problem.

 

[Mo0o]

Are you sure it exists? That assumes perfect energey conservation without losing any of it to the outside system in the form of heat, sound, light

 

[Forsythe]

Rubber ball against the floor? Ofcourse, yo could go into atoms colliding completely central, but that's a bit more complicated.
But the ball is the best thing i can come up with.

 

[rezinn]

Collision between atoms of a noble gas?

 

[TechnoKid]

Text

 

[Forsythe]

Originally posted by: Mo0o
Are you sure it exists? That assumes perfect energey conservation without losing any of it to the outside system in the form of heat, sound, light

It doesn't exist, unless you go to the molecular level.

 

[Mo0o]

Originally posted by: Forsythe
Rubber ball against the floor? Ofcourse, yo could go into atoms colliding completely central, but that's a bit more complicated.
But the ball is the best thing i can come up with.

If it was perfectly elastic that would mean the ball can bounce forever w/o changing height

 

[poncherelli2]

what would be an example on the molecular level?

 

[poncherelli2]

also, i was told that examples do exist, i dunno if maybe they need to occur in space or a vaccuum, but i believe there are some examples.

 

[Mo0o]

Originally posted by: poncherelli2
also, i was told that examples do exist, i dunno if maybe they need to occur in space or a vaccuum, but i believe there are some examples.

magnetic repulsion at superfreezing temperatures comes close

 

[Kibbo]

One of those desktop marble thingamabobs would be pretty close, except for the friction and the sound. To the naked eye, it seems pretty perfect.

 

[poncherelli2]

bump for more looks