Hi @Ziad.Ali,
If you need to change the size/length of the rope as the player walks, you will probably need to add/subtract smaller units from it. So, it would be like you’re construction a “chain” of small physics objects, as shown in our “Chains” sample project, but since you don’t want this rope to flex and bend, you could attach each segment to the next using a “weld” joint (not a “pivot” joint).
Brent