How to Detect the Force of a Collision

Unity Engine
1

I have an object that I want to break when it is hit by an object going at a high velocity.

I know that there is:

rigidbody.velocity;

but I can’t seem to find a way to get this to work.

Any help would be much appreciated.

-Gamexcb

2

Collision.relativeVelocity

3

In the collision an if statement would read:

If(Collision.relativeVelocity){

]