What is the distance traveled by the red ball between 0\,\text s0s0, start text, s, end text and 24\,\text s24s24, start text, s, end text? \text mm

Learning goal: to understand that the charge stored by capacitors represents energy; to be able to calculate the stored energy and its changes under different circumstances. an air-filled parallel-plate capacitor has plate area a and plate separation d. the capacitor is connected to a battery that creates a constant voltage v.