Physics - question re: 2d collision page

From: "Matthew"
To: "Martin Baker"
Subject: question re: 2d collision page
Date: 18 June 2003 08:04

thanks for putting together one cool, informative, helpful site!

on the page
<https://www.euclideanspace.com/physics/dynamics/collision/twod/index.htm> for
the equation:

2 * ((MaMb)/(Ma+Mb) * ((VbiVai) dot n) * n

what is (VbiVai)? It cant be a dot product. You cant just multiply
two vectors afaik. Should this be (Vbi - Vai) ??

and ditto for the next equation also.

thanks, and keep up the good work!

Matthew


From: "Martin Baker"
To: "Matthew"
Subject: Re: question re: 2d collision page
Date: 18 June 2003 10:39

Matthew,

I think you are right, I have corrected the web page. Thank you very much
for pointing this out (and also for your kind comments about the site).

Martin


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