(Solved): The driver of the truck has a speed of 80 ft/sec as it passes position A, and subsequently the truck ...

The driver of the truck has a speed of 80 ft/sec as it passes position A, and subsequently the truck decreases its speed at a constant rate of 5 ft/sec per second as it travels up the circular hump. The radius of curvature of the road is r = 650 ft and the center of mass G of the driver is h = 6 ft above the road. If ? = 30? , determine the total acceleration of the driver at positions A and B