How do I make pinball physics?

I made a test pinball game and currently, I have the pinball working fine, but when I hit it with the flippers, it doesn't go flying up it just stays on the flipper. How could I solve this? I'm using the physics behavior for the pinball and the flippers.

Could you provide a .capx?

Try to add the "Push out solid" behavior to the pinball.

Push out solid did not work for me. https://drive.google.com/file/d/0By88jPxuD-7iNlpsZW1NNmNwT0k/view?usp=sharing here is capx