Well just think about it. If energy is conserved and the po…

Well just think about it. If energy is conserved and the potential energy changes as a result of the motion of the system, then the kinetic energy must change to balance that. Conservation of energy determines the acceleration of the system.
https://twetch.app/t/63f9500e6fe6ad59ed5f14a17d017d338348bcf20bb035cd15d1d2269d29ee4b