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05.04.2021 02:32
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An early submersible craft for deep-sea exploration was raised and lowered by a

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 5500 N. When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N drag force.What was the tension in the cable when the craft was being lowered to the seafloor?
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yyy77uh
yyy77uh
4,4(51 marks)

T = 12910.5\,N for a craft with a mass of 1500 kg.

Explanation:

Let consider that craft has a mass of 1500 kg. The submersible craft is modelled after the Newton's Laws, whose equation of equilibrium is:

\Sigma F = T - W +F_{D} = 0

The tension experimented by the cable while the craft is lowering to the seafloor is:

T = W - F_{D}

T = (1500\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)-1800\,N

T = 12910.5\,N

anight839
anight839
4,5(42 marks)

Im quarantined

Explanation:

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