kilometers (km) Model 3: Models 1 and 2 Revisited Position Function from Graph I 1000 800 600 400 200 y= P(t)=3013 2 4 6 8 10 hours 10000 tread thickness (um) 8000 6000 4000 2000 Tire Wear Function from Graph II y=W(u)=- +10000 120 " 200 400 600 kilometers (km) 800 1000 Race Car Position as a Function of Time Tire Tread Thickness as a Function of Distance. Construct Your Understanding Questions (to do in class) 16. Find values for ... a. P(10) = (Note: Graphs I and II are larger in Models 1 and 2.) b. W(P(10)) = 17. In Question 3 you found that P'(10) was close to 142. a. Describe what P'(10) 142 tells you about the racecar. 18. In Question 6 you found that W'(950) was close to a. - 15.8. Describe what W'(950) == 15.8 tells you about the racecar. b. What are the units of P'(t)? b. What are the units of W'(t)?