>>273389776
>>273389610
Huh, I just watched a video, I guess it's not really physically based but not exactly what I was thinking of either. What I meant is that it should literally just unroll, until it becomes a perfectly straight line extending out of the handle, like a lightsaber, and of course it shouldn't have an AOE or anything either. So I guess imagine that in real life, you have a tube. Inside that tube, you put in a spring. At the end of the tube that you grab onto, you attach the spring, and then you attach a weighted ball to the other end of the spring. Then you swing the tube. The weighted ball extends out the most when you swing and then suddenly stop, since the tube redirected all the momentum of the ball from the swing into the direction of the tube. Sorry if that's confusing though, it's hard to explain. 

>>273391542
You're right, I forgot that animation also happens, but a lot of times the control and physics made it feel like the whip moved at the same time independently rather than his hand causing the whip to move.