All of your examples of momentum and kinetic energy involve trucks. For your Ph.D. thesis, you calculated exactly how much Jim Beam you could consume without passing out, constructed an apparatus to keep you precisely AT that limit and then stumbled around shouting and throwing things to prove that Newtonian Mechanics are invariant under alcoholic transformations. You bring your laser pointer with you to the bar so that when you get too drunk to speak, you can use it to indicate which drink you'd like next. Under a grant entitled, 'Scattering of High Energy Particles,' you bought a 12 gauge and went duck hunting. This theorem can now be supported using some basic physics and two well known propositions, namely Knowledge is Power.
Time is Money.