An alpine rescue team is using a slingshot to send an emergency medical packet to climbers stranded on a ledge, as shown in Fig. 4-34 (height=265 m, horizontal distance=407 m, landing angle=73.5° below the horizontal). (Hint: It might be helpful to run the problem in reverse, with the top of the mountain representing the launch point.) What should be the launch speed from the slingshot? What is the launch angle? What is the time of flight? What is the highest point reached by the packet?