The formula d 1.1t + t +2 expresses a car's distance (in feet to the north of an intersection, d, in terms of the number of seconds t since the car started to move. a. As the time t since the car started to move increases from t = 2 to t = 5 seconds, what constant speed must a truck travel to cover the same distance as the car over this 3-second interval? Preview feet per second b. As the time t since the car started to move increases from t = 7 to t = 7.2 seconds, what constant speed must a truck travel to cover the same distance as the car over this 0.2-second interval? feet per second Preview