What happens to v and p, both are vectors, so at t=2 and t=1, in reversed time, the ball is travelling towards the balk cushion, but the vectors point away from it?
Now place yourself at the other far end bounce cushion and time is always running backwards according to you even when you are waiting to strike the ball ... you may need to think about it for a second
Time only goes the right way when the ball has bounced and is on it's way back.
Bill S new word for the day to learn about => Hamiltonian
https://en.wikipedia.org/wiki/Hamiltonian_mechanicsThe time evolution of the system is uniquely defined by Hamilton's equations
You have created a Hamiltonian description and it's just a mathematical description. The article even tells you how to deal with your vector descriptions and the physical meaning.
Want me to prove to you that your description is completely meaningless ... pick up the ball somewhere in it's travels.
So which way is your time running when I pick the ball up?
