During a traffic safety class (military) a train engineer speaks about his encounters with cars on the tracks - he said he never felt the impact of any of them....Don’t know if your calculations for the object are correct, but don’t forget the other side of the equation....
” ... don’t forget the other side of the equation....”
“The other side” barely stirs the dust settling into the paint scratches, when it comes to understanding what happens when one object hits another.
I have wished - usually after days of head-scratching - that there was only a single equation to deal with.
Interested forum members are invited to perform a websearch on the acronym SURVIAC.