Is Friction property of parts available ? I don't see it in the Properties section, and is it accesible via script?
Thanks to the new PhysicalProperties feature, the extended use of physics on ROBLOX is now possible for greater games! I believe you can turn it on for default in the Workspace, although I'm not so sure, but it is in properties and you can mess around with it. And yes, I believe that's possible and you can also edit it to fit your best needs and interests. Just confirming :)
As @IDidMakeThat says, it's not anymore called Friction, but it's still there along with all the others , but now it's combined in 1 property! And can be fully customized and modified in a script!
Taking as an example a Part.
game.Workspace.Part.CustomPhysicalProperties = PhysicalProperties.new(float density, float friction, float frictionWeight, float elasticityWeight)
You can find more usefull information in this link people!
http://wiki.roblox.com/index.php?title=API:PhysicalProperties