Use the position function s(t) = -4.9t2 + 500, which gives the height (in meters) of an object that has fallen for t seconds from a height of 500 meters. The at time t a seconds is given by the following. lim ta s(a) - s(t) a-t At what velocity will the object impact the ground? (Round your answer to two decimal places.) m/s Need Help? Read It Watch It