A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 50 ft/s. Its height in feet after t seconds is given by y - 50t - 13t2. A. Find the average velocity for the time period beginning when t=2 and lasting 01 s 005 s: 002 s: 001 s: NOTE: For the above answers, you may have to enter 6 or 7 significant digits if you are using a calculator Estimate the instanteneous velocity when t=2