course PHY 121 7/2 12a An automobile traveling a straight line is at point A at clock time t = 9 sec, where it is traveling at 10 m/s, to a certain point B. If the automobile accelerates uniformly at a rate of .9 m/s/s, then if it reaches point B at clock time t = 14 sec, what is its velocity at that point? What is its average velocity over the interval from A to B? If at point A the automobile is 44 meters from the starting point, how far is point B from the starting point?5 seconds between clock time 9 and 14 * .9m/s/s gives 4.5m/s increase over the time interval. Adding this to the initial velocity of 10m/s gives a final velocity of 14.5m/s at the clock time of 14 sec. The average velocity over the A to B interval would be 10m/s + 14.5m/s / 2, which is 24.5m/s / 2 = 12.3m/s vAve.