Problem 1: a plane is flying due south at 500 m/h at 3,5000 feet altitude, straight and level. A second plane in initially 40 miles due east of the first plane, also at 35,000 feet altitude, flying straight and level at 550 m/h. Determine the compass angle at which the second plane would be on a collision course with the first. How long will it take for the second plane to catch the first? Hint: Use the relative velocity equation and solve graphically or analytically. plane 1 V1 = 500 mph 40 mi. plane 2 V2 = 550 mph