4) Use the position function s(t) = -1612 + vit+s for free falling objects. A silver dollar is dropped from the top of a building that is 1362 feet tall. a) Determine the position and velocity functions for the coin. b) Determine the average velocity on the interval [1, 2]. - 32 + 6- 64 96 2 48 c) Find the instantaneous velocities when t = 1 and t = 2. - 16t + 1362 = - 32t = d) Find the time required for the coin to reach ground level. e) Find the velocity of the coin at impact. - 32 ( 2)