Problem 12. (1 point) If a ball is thrown straight up into the air with an initial velocity of 55 ft/s, its height in feet after t seconds is given by y = 55t - 16t2. Find the average velocity for the time period begining when t = 2 and lasting (i) 0.1 seconds 1.02 (ii) 0.01 seconds 1.002 (iii) 0.001 seconds 1.0002 Finally based on the above results, guess what the instantaneous velocity of the ball is when t = Note: You can earn partial credit on this problem. 2. preview a