In Exercises use the position function s(t) = -4.9t + 250, which gives the height (in meters)

In Exercises use the position function s(t) = -4.9t² + 250, which gives the height (in meters) of an object that has fallen for t seconds from a height of 250 meters. The velocity at time t = a seconds is given byFind the velocity of the object when t = 4.

Transcribed Image Text:

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