A heavy truck with a weight to horsepower ratio of 300 lb/hp begins a climb at 55 MPH. First it completes a 4% upgrade of unknown length from Point X to Point A, then completes a 2% climb of 4000 ft., then completes a 3% climb of 5000 ft., where it has a speed of 27 MPH at Point C. NO NEED TO SHOW WORK ON THIS PROBLEM ONLY. a. What are the speeds of the truck at Point B and also at Point A? ________________________ b. Find distance of 4% upgrade. ___________________________________________________ c. If the speed limit for all vehicles is 55 mph, where should a climbing lane start as measured from Point X? _____________________________________ 0% 55 MPH 4 % ? ft. 2% 4000 ft. A X B C