10. (20 points total) An airplane is delivering a food package to a very small island by dropping it. The airplane flies horizontally with a constant speed of 1 10 m's at an altitude of 500 m. The "island" refers to the point al. a distance D from the point at which the package is released, as shown in the figure. Ignore the height of this point above sea level. (a) (6 points) After a package is ejected from the plane, how much lime will it take for it to reach sea level from the time it is ejected? ia D (b) (4 points) If the package is to land on the island, at what horizontal distance D from the plane to the island should the package be released