A ball is dropped into the oil. The position of the ball is given by the formula y(t) = A + Bt +C e−Dt, where y is given in m, and t is the time in s. At t = 0, y(0) = 0.06 m, the y component of the velocity is zero and the y component of the acceleration is ay(0)= 0.015 m/s2. As t approaches infinity, the y component of the velocity approaches vy([infinity]) = 0.4 m/s what is the formula for velocity?