1. The problem statement, all variables and given/known data An object is launched at a speed of 10.1km/s. What is the maximum height of this object. The answer is within 10% of 2.88x10^7. and should be relatively close to it. 2. Relevant equations radius of earth=re. I believe 9.8*((re)/re+h)^2=gravity is relevant. a=g. v=gx-10100. and d= gx^2/2-10100x. There may be others but I do not know them. 3. The attempt at a solution I tried factoring out re+h^2 and plugging in values but I was unable to figure out if there were any other formulae necessary. The problem also gave practice problems and i tried using a table to find an approximate value for h. I tried determining a formula from these answers but was unable to.