help with collisons

Jul 13, 2009 at 10:54 AM
firstly a big thanks to all the help i have recived on the forums. my problem is this i am wanting to get the compont vel that inpacts an object. for example i have a platform at 45 degress a box falles under normal gravity. and then slides down the slop. only the x compont is trigger the collison i thought i had a formulor using sin and cos of the angle, but it does not work and is giving me a headack. so dos anyone know the formulor to work out the compontat is is triggering the oncollison?