x(m) 240 220 200 180 160 140 120 100 80 60 40 20 - t (s) 1.00 2.00 3.00 4.00 5.00 6.00(b) Determine the instantaneous velocity of the car at t = 3.8 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the limiting process keep at least three decimal places in your answer.) At = 0.40 s X m/s (Use the interval from t = 3.60 s to 4.00 s.) At = 0.20 s X m/s (Use the interval from t = 3.70 s to 3.90 s.) At = 0.10 s X m/s (Use the interval from t = 3.75 s to 3.85 s.) (c) Compare the average velocity during the first 3.8 s with the results of part (b). The average velocity of X