Question

Assume that a 200 Lb/hp truck is entering to a 4% uphill grade with the speed of 70 mph. After going up for 2500 ft, the truck continues its route for 3000 ft in a +2% grade. What is the uniform grade for the truck route?

a) 3.2% b) 2.6% c) 1.6% d) 3%

Answer 1

Note : time taken in both condition should be same.