1. The problem statement, all variables and given/known data A physics student with too much free time drops a watermelon from the roof of a building height H. He hears the sound of the watermelon going "splat" after a time interval of Delta T. You may ignore air resistance. How high is the building? The speed of sound is Vs. 2. Relevant equations Quadratic formula physics 3. The attempt at a solution Ok T = T1 +T2 = H/Vs + sqrt(2H/g) (T - H/Vs)^2 = 2H/g Therefore T^2 - (2TH/Vs) + (H/Vs)^2 - 2H/g = 0 I want to solve for H. How do I plug this into the quadratic formula so that I can solve for H? Im only used to there being 3 terms in the poly nomial (like x^2 + x + 4). Im thinking I have to combine the -(2TH/Vs) and -2H/g somehow but I dont know how!!!!! Please help!