please help with all parts for both 11 & 12 thank u

11. [-/3 Points] DETAILS LARCALCET7 3.2.096.MI. Find the average rate of change of the function over the given interval. ((t) = 612- 1, [1, 1.1] Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. left endpoint right endpoint Need Help? Read It Master it 12. [-/7 Points] DETAILS LARCALCET7 3.2.101. A silver dollar is dropped from the top of a building that is 1304 feet tall. Use the position function below for free-falling objects. s (t) = -16t + Vot + so (a) Determine the position and velocity functions for the coin. s (t ) = V(t ) = (b) Determine the average velocity on the interval [1, 2]. ft/s (c) Find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s V ( 2 ) = ft / s (d) Find the time required for the coin to reach the ground level. (Round your answer to three decimal places.) t = s (e) Find the velocity of the coin at impact. (Round your answer to three decimal places.) ft/s Need HENo? Read It