일반물리학 1 — Motion Along a Straight Line: Problem 58

58 An object falls a distance \(h\) from rest. If it travels \(0.60h\) in the last \(1.00 \text{ s}\), find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in \(t\) that you obtain.