Question 6: What is the displacement of the train from time t = 0s until t = 50s? Question 7: What is the total distance traveled by the train from time t = 0s until t = 50s? Question 8. What is the slope of the line during the time interval t = 45 to t = 50? Question 9: What does the sign of the slope in question 8 represent in terms of the motion of the train? Question 10: What is the average velocity of the train during the interval t= 0s to t = 50s? Question 11: Does the train’s average velocity during the interval t= 0s to t = 50 s provide a complete picture of the train’s motion during this time?.