If a ball is thrown straight up into the air with an initial velocity of 55 ft/s, it height in feet after t second is given by y=55t−16t2. Find the average velocity for the time period begining when t=2 and lasting
(i) 0.1 Seconds:
(ii) 0.01 Seconds:
(iii) 0.001 Seconds:
Finally based on the above results, guess what the instantaneous velocity of the ball is when t=2