Question

How fast must a pion be moving to travel 15m before it decays? The average lifetime, at rest, is 2.6 x 10^-8 s.

Answer 1

what is a pion?

Answer 2

I don't really know but it has a mass of about 270 times that of an electron

Answer 3

It's a subatomic particle but I don't know it's purpose

Answer 4

I might have to look this up in a physics book

Answer 5

do you have a physics book handy i can look up :)

Answer 6

Oh, don't worry about it, I'll just have to squeeze out an intelligible explanation from my physics teacher haha. :) I've been reading through my book and still can't figure it out

Answer 7

I feel like there might be info about the pion that I'm missing because I just can't figure out anything with what I'm given

Answer 8

yes its definitely intriguing :)

Answer 9

is this high school physics or college physics ?

Answer 10

I'm in high school, but I have no idea what level this is. I made my school create a Physics II class just for me (lol) so my teacher has been winging the curriculum all semester. I can't say I learned a whole lot but I'm happy with what I did learn!

Answer 11

thats pretty cool , and nice of your teacher to do that