For the following position function y = 5(t), an object is moving along a straight line, where t is in seconds and s is in meters. _ 3 50:) 21' + 5 (a) Find the simplied expression for the average velocity from t = 3 to t = 3 + h. X (In) Find the average velocity between t = 3 and t = 3 + h, where h = 0.1, h = 0.01, h = 0.001, and h = 0.0001. (Round your answers to three decimal places.) (c) Use the answers from part (b) to estimate the instantaneous velocity at t = 3