I don't know about any of that but I do know that if you are riding in a truck going 30 miles an hour and throw an empty beer bottle at a road sign that is too close to the road it may bounce back and make a dent in your truck.
I also know that an empty beer bottle, when thrown from a truck moving 60 miles an hour, may bounce on the rocky ground and not bust, but a bottle of the exact same type that is still filled with beer will shatter in the street if you open the door of the same truck and it falls out.
And those lessons I learned in highschool when I was not in physics. And all in the same day.