A daring 50 kg physics student designs a "person launcher\" to get up a tall hill. The launcher is a spring with k = 20,000 N/m. The launcher itself sits 10 m above the floor of a ditch. The launching spring is compressed a distance of 0.75 m from its equilibrium position. The student then sits in front of the launcher, and the launcher is allowed to push him forwards. The student then slides with negligible friction down into the ditch and then up the hill. What height on the hill (above the bottom ofthe ditch) will the student reach? Show all your work and explain your reasoning. \"his... 10 m