4) You are in your damaged dune buggy in a desert three miles due south of milepost 73 on Route 66, a straight highway running East and West. The nearest water is on this highway and is located at milepost 79. Your dune buggy can travel 4 miles per hour on the highway but only 3 miles per hour on the sand. You gure that you have 2 hours and 10 minutes left before you die of thirst. Assuming that you can take any straight line path from your present position to the road and then follow the road to the water, what is your minimum time to the water