1. The problem statement, all variables and given/known data Question: An airplane is 250m from the zero heigh and drops a package: a. What is the objects kinetic energy if the velocity is moving at 10m/s. How much energy is left? What height should the object be at? b. What is the objects kinetic energy if the velocity is 30m/s? How much energy is left? What height should the object be at? 2. Relevant equations KE=.5mv^2 PE=mgh mgh(initial)+mv(initial)^2=mgh(final)+.5mv(final)^2 (I am not sure if this equation is relevant but it might be so I thought I put it down) 3. The attempt at a solution a. KE=.5(75)(10^2)=3750 J I have no idea how to find how much energy is left. Is there an equation for this/ h=3750/75x9.81=5.1m b. KE=.5(75)(30^2)=33750 J Again I don't know how to find the amount of energy left over. h=33750/75x9.81=5.1m Also I don't understand what the 250m is there for but I guess it may have something to do with the amount of energy left.