2D Crushing a circle if enough force is applied.

So I have this idea that a 2D circle in my game should be crushed if an object falls on it with enough force. And by crushing, I mean if the circle is hit hard enough the line "Destroy (gameobject);" is executed. All I really need to go about doing is figuring out how much force is being applied to the circle, say, if it gets hit hard enough, if it gets pinned between two objects, even if there is just an object sitting on top of it and its mass is great enough. How would I go about figuring out how much force is applied to my circle.

 

This should be fairly easy, I think. In your OnCollisionEnter2D function, you can check the mass of the colliding object, where it is in relation to your other object (above, below, etc.), and (I think) the colliding object's velocity at the moment of impact.

 

I was having trouble getting all the contact points from the collision event. I had 2 objects touching my circle though my console was only showing one contact point. So im unsure how to figure out if the two are opposite each other when I can't view all the contact points