When an object is dropped, the distance it falls in t seconds, assuming negligible air resistance, is given by s (t) = 4.9t2, where s (t) is in meters (m). If a stone is dropped from a cliff, find each of the following: a) How far the stone has traveled 6 sec after being dropped? (3 points) b) How fast it is traveling 6 sec after being dropped? (3 points) c) Its acceleration after it has been falling for 6 sec. (3 points)