Animation bend with 2 costraint

Hi all!
I’m having lot of trouble with this apparently stupid animation, I searched in the forum but I didn’t find anything that could help me.
I need to animate this elastic that is fixed on two movable object and that it will strecht and bend when one of the object will move.

Thank you for Your patience

Hi, you can use the “stretch to” constraint, let us know if that helps

I tried the “stretch to” but i cannot arrive to obtain this result.