13. Determine the velocity for the motion described by the graph. 300 250 d (m [W]) 200 150 100 50 0 0 5 10 time (s) 15 5 20 14. A delivery truck is driving west away from its store. The d- t graph below illustrates its motion. a. What is its a position at: 450 Time (s) Position (m[W]) 400 20 40 70 90 position (m [W]) 350 300 250 200 150 100 50 b. How many stops were made for deliveries? 0 0 20 40 40 60 80 100 time (s) C. How long was the longest stop? d. What was the maximum displacement from the store? e. What was the velocity of the truck in the first 10 seconds? f. In what direction was the truck travelling at 90 s? g. What was the maximum speed of the truck at any time? h. What was the total distance? i. What was the total displacement? j. What was the average speed of the entire trip? k. What was the average velocity of the entire trip?