Tower Collapsing - Bullet Logic Editor help!

Hi there,
I’m making another tower collapsing video in physics, but I’ve got a question!

I’m using the ‘Logic Editor’ for moving a ball into my building, but this give me a problem.
If the ball hits an obstacle, it will normally stop/slow down, right? But my ball wouldn’t stop after hitting something!

This is my logic edit for the ball:


Does somebody know how I can get the option that it will stop after hitting the building/obstacle?

Thank you!