Multiple Choice: A racer with a five foot head start runs with an acceleration of a(t) = 6t ft/sec2. At t = 4 seconds, her velocity was 50 feet per second and she finished the race in 9 seconds. How long was the race? Homework Help ✎
Use v(4) = 50 to solve for C.
Use d(0) = 5 to solve for C.
Use your equation for d(t) to evaluate d(9).