A skydiver weighing 85 kg jumps out of a helicopter hovering at a height of two kilometers. Assume a cross-sectional area of 0.5 square meters. After thirty seconds of free fall, the skydiver opens the parachute and... nothing happens. The parachute is jammed. Create a model for the height of the skydiver. What is the skydiver’s terminal velocity until the skydiver goes splat? How long does it take for the skydiver to reach the ground (dead or alive)?