Final answer:
To calculate the average velocity for the given time period, we need the height at the end of the time period.
Step-by-step explanation:
To find the average velocity for the time period beginning when t = 2 and lasting, we need to find the change in height and change in time during that period. The height function is given by y = 48t - 16t2. So, when t = 2, the height is y = 48(2) - 16(2^2) = 96 - 64 = 32 feet. We also need to find the height at the end of the time period, but the question doesn't provide that information. Therefore, we cannot calculate the average velocity without knowing the height at the end of the time period.