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Q6) An object is released from rest (its initial velocity is zero) from the Empire State Building at a height of 1250 ft above street level (Figure Ex-26). The height of the object can be modeled by the position function s = f(1) = 1250 - 1612. (a) Verify that the object is still falling at t = 5 s. (b) Find the average velocity of the object over the time interval from ? = 5 to 1 = 6 s. (c) Find the object's instantaneous velocity at time ? = 5 s. - 1250 0 Figure Ex-26