# Circle collisions and vectors

**URL:** <https://forum.kirupa.com/t/circle-collisions-and-vectors/84474>\
**Category:** Uncategorized\
**Created:** [March 28, 2005, 1:47am UTC](https://forum.kirupa.com/t/circle-collisions-and-vectors/84474 "2005-03-28T01:47:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![H4T](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/h4t/32/329_2.png) [@H4T](https://forum.kirupa.com/u/H4T)\
**Post date:** [March 28, 2005, 1:47am UTC](https://forum.kirupa.com/t/circle-collisions-and-vectors/84474/1 "2005-03-28T01:47:04Z")

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This issue has been puzzling me for quite some time. I’m familiar with both hittest() and pyth. theorem ways of calculating collisions, and I’m familiar with the law of conservation of momentum and vectors (on paper, lol).

I can’t figure out how to calculate the resulting angle of the the circles after the collision, but I can calculate the momentum. Can anyone help? I haven’t found any threads with an answer, nor any well documented code anywhere…so yeah, anyone?