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=251 m, horizontal distance=420 m, landing angle=75 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? m/s What is the launch angle? What is the time of flight? S What is the highest point reached by the packet? m h Ax Figure 4-34.