A rock is dropped down from the top of a 500-foot cliff After 1 second, the rock is traveling 32 feet per second. After 3 seconds, the rock is traveling 96 feet per second a. Assume that the relationship between time, t, and speed, s, is linear and write an equation describing this relationship. Use ordered pairs of the form (time, speed) b. Use this equation to determine the speed of the rock 6 seconds after it is dropped. .. a. Let s represent speed and t represent time. The equation describing the relationship between speed and time is s = 32 (Simplify your answer. Use integers or fractions for any numbers in the expression.) b. The speed of the rock 6 seconds after it was dropped is 2241 ft/sec