1.0 link Rainbow Dash Network http://rainbowdash.net/ Narwhal (narwhal) http://rainbowdash.net/narwhal http://rainbowdash.net/notice/3361468 @<span class="vcard"><a href="http://rainbowdash.net/user/1768" class="url"><span class="fn nickname mention">snowcone</span></a></span> Well, I'm not sure if I could point to any online sources, but a good topic to start with is one dimensional motion. Also, learn the difference between a vector and a scaler.