Hawks and gannets soar above the ground and, when they spot prey, they fold their wings and essentially drop like a stone. They have evolved a highly aerodynamic shape that lets gravity build up their speed without having to make the effort of trying to fly at a high speed. (see the figure of a diving hawk at the right. The technical term for this maneuver is "stooping". ) for this problem, you may approximate the strength of the gravitational field as g = 10 n/kg.