A mechanic releases a small object with a density of 1.5 g/cm^3 and a volume of 1.0 cm^3 into a large vat of motor oil whose density is 888.1 kg/m^3. The container is 12.0 m deep with a diameter of 1.8 m. What will the magnitude and direction of its acceleration be if it is released from rest
(a) when it is 50% submerged?
(b) at a depth of 1.0m (c) at a depth of 1.6m.