When a car starts to round a curved road with the radius of curvature of 600 ft, it is tra...

When a car starts to round a curved road with the radius of curvature of 600 ft, it is traveling at 75 ft/s. If the car’s speed begins to decrease at a rate of  = (–0.06t2) ft/s2, determine the magnitude of the acceleration of the car when it has traveled a distance of s = 700 ft.