Recent content by jefflee0510

  1. J

    How Far Does an Object Fall in the Third Second of Vertical Motion?

    (Neglect air resistance in all cases) An object falls down from the top of a high overhanging cliff. How far does it fall in the third second of its motion? I don't know which formula to use. I know that a=9.8ms^-2 and t=3s I think. Apparently the answer is 24.5m. But I don't know how to work...