Problem 12.50 The jet car is originally traveling at a velocity of 10 m/s when it is subjected to the acceleration shown. When t = 0, s = 0. Suppose that a = 6 m/s, a2 = -5 m/s, and t" = 12 s. (Figure 1) Part A Figure Determine the car's maximum velocity. Express your answer to three significant figures and include the appropriate units. Umax = Value Submit Request Answer Part B Units Determine the time t' when the car stops. Express your answer to three significant figures and include the appropriate units. 1 of 1 > t' = Value a (m/s) a1 a 1(s) Submit Request Answer Provide Feedback ? Units