In Exercises, use the position function s(t) = 16t + 500, which gives the height (in feet) of an object that has fallen for t

In Exercises, use the position function s(t) = 16t² + 500, which gives the height (in feet) of an object that has fallen for t seconds from a height of 500 feet. The velocity at time t = a seconds is given by 

A construction worker drops a full paint can from a height of 500 feet. How fast will the paint can be falling after 2 seconds?

s(a) - s(t) lim t-a a-t