An early submersible craft for deep-sea exploration was raised and lowered by a

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 6500 N. When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N drag force.

Part A

What was the tension in the cable when the craft was being lowered to the seafloor? Express your answer to two significant figures and include the appropriate units.

T =

Part B

What was the tension in the cable when the craft was being raised from the seafloor?

Express your answer to two significant figures and include the appropriate units.

T =

Part B

What was the tension in the cable when the craft was being raised from the seafloor?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

T = mg = 6400 at equilibrium

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