Help Fishing Pole/Line

[Natty]

Is it possible that the attachment between the bobber and the rope is set to static? That will force the rope to follow the object it is attached to, without resisting in any way (similar to a parent/child relationship between objects).

You must set the attachment to dynamic. This will simulate the attachment using forces instead, this is what you usually want for attaching a dynamic (non-kinematic) rigidbody. See: http://obi.virtualmethodstudio.com/manua...ments.html

Edit: I can confirm that one of the attachments to the bobber is indeed static, as seen in your screenshots. Making it dynamic instead should allow the rope to apply forces to the bobber, resisting pulling.

Ah, you're right!  So that does fix the length... now I'm fitting with the rope being "split" here...
Also, is there a way to change the starting length?