A rock is thrown downward from the top of a cliff with an initial velocity of 3 feet/sec. (Remember, the acceleration of a falling object is 32 ft/sec.) Select the function that describes the relationship between the velocity (v) of the rock and time (1). A. v = 161+3 D. v = 321 B. v=32 E. v=161 +31 C. v = 32t+3