Box Collider 2d don't stop the object (prefab)

Hello everyone,
I’m trying to understand why the Game object with Box Collider 2d does not stop the object (prefab) using Rigidbody 2d? Thank you in advance.

Thank you in advance.
91709-boxcolider2d.jpg

91710-prefab.jpg

I do not follow your question. Rather than guessing your way through, give the basic 2D physics tutorials a look over here and the user manual here.

Hello gum,

be sure that the layers match and that all 2D objects are oriented to 0 in the Zed position. double checking minute parameters will save you hours of frustration.