1. The problem statement, all variables and given/known data Prove that the velocity verlet scheme is time reversible. 2. Relevant equations r(t+dt) = r(t) + v(t)dt + 1/2a dt^2 v(t+dt) = v(t) + 1/2 a(t)dt + 1/2a(t+dt)dt 3. The attempt at a solution I substitute -dt in at dt and get: r(t-dt) = r(t) - v(t)dt +1/2a dt^2 v(t-dt) = v(t) -1/2a(t)dt -1/2a(t-dt)dt the squared factor of time in the acceleration term is annoying me, can it be done easier?