37. (II) Three students derive the following equations in which x refers to distance traveled, v the speed, a the acceleration (m/s2), t the time, and the subscript zero (0) means a quantity at time t = 0: (a) x = vt^2 + 2at, (b) x = v0t + 1/2 a t^2, and (c) x = v0t + 2at^2. Which of these could possibly be correct according to a dimensional check?
