If a ball is thrown into the air with a velocity of 40ft/s, its height in feet t seconds later is given by y=46t - 16t2. Find the average velocity for the time period beginning when t = 2 and lasting 0.5 seconds. Find the average velocity for the time period beginning when t = 2 and lasting 0.1 seconds. Find the average velocity for the time period beginning when t = 2 and lasting 0.05 seconds. Find the average velocity for the time period beginning when t = 2 and lasting 0.5 seconds. A Find the average velocity for the time period beginning when t = 2 and lasting 0.1 seconds. A Find the average velocity for the time period beginning when t = 2 and lasting 0.05 seconds. Find the average velocity for the time period beginning when t = 2 and lasting 0.01 seconds. A Estimate the instantaneous velocity when t=2. A