Solve the all parts of following question given below:
Question: An early submersible craft for deep-sea exploration was raised and lowered by a cable from a ship. When the craft was stationary, the tension in the cable was 7000 N. When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N drag force.
Part I: What was the tension in the cable when the craft was being lowered to the seafloor?
Part II: What was the tension in the cable when the craft was being raised from the seafloor?
I need tutor help to solve the above question and express your answer to two significant figures and include the appropriate units.