Hi.
You can use Collision Event and Get Collision Info (relative speed)
Then 'Game Object Compare Name and then some float compares.
Then some Tmp Set color and some instantiates.
You can also make a Custom action if you wish.
If you right click on actions you can select 'Edit Scripts' there you can see how the scripts work.
Also here is a link to the
Playmaker APIIf you will be reusing those destroy parts, i strongly suggest you to look into pooling.