If a ball is thrown straight up into the air with an initial velocity of 60 ft/s, it height in feet after t second is given by y : 60t 16t2. Find the average velocity for-the time period begining when t = I and lasting (1') 0.1 seconds (ii) 0.01 seconds ::::J (iii) 0.001 seconds :2 Finally based on the above results, guess what the instantaneous velocity of the ball is when t = 1. Submit