Tension in and out of water in constant velocity

The tension in the crane's cable would be equal to the weight of the hull, which is 18,000 kg. As for finding the amount of water displaced, the formula is V = m / ρ, where V is the volume of water displaced, m is the mass of the hull, and ρ is the density of water. In summary, the conversation discusses the tension in the crane's cable when lifting a steel hull out of the water at constant velocity. The tension in the cable is equal to the weight of the hull, 18,000 kg, when submerged and when completely out of the water. To find the amount of water displaced, the formula V = m / ρ can be used.
  • #1
pearson.hannah
3
0
A crane lifts the 18,000-kg steel hull of a ship out of the water at constant velocity.

(A) Determine the tension in the crane’s cable when the hull is submerged in the water.

(B) Find the tension when the hull is completely out of the water.

I would have thought that B would just be the weight, but apparently that was wrong. And how do you find the amount of water displaced when the hull is submerged? I was thinking maybe A is the weight minus the displacement?

Thanks in advance for any help!
 
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  • #2
Your answer to B looks right to me. What's your reason for saying it's wrong?
I agree with your answer to A too.
 

Related to Tension in and out of water in constant velocity

What is tension in water?

Tension in water refers to the force that is created on the surface of the water due to the attraction between water molecules. This force is also known as surface tension and it is stronger in water compared to other liquids due to the cohesive properties of water molecules.

How is tension affected by constant velocity?

When an object is moving at a constant velocity through water, the tension on the object will be equal to the force exerted by the water on the object. This means that the tension in the water will remain constant as long as the velocity of the object remains constant.

What is the relationship between tension and velocity in water?

The tension in water is directly proportional to the velocity of an object moving through it. This means that as the velocity of the object increases, the tension on the object's surface will also increase. Similarly, as the velocity decreases, so does the tension in the water.

How does tension in water affect the movement of objects?

Tension in water can greatly affect the movement of objects. Objects with a higher surface tension, such as insects, can easily float on the surface of water. On the other hand, objects with lower surface tension, such as paper, can sink in water. Additionally, tension in water can create drag on objects, making it harder for them to move through the water.

What are some real-life applications of understanding tension in and out of water in constant velocity?

Understanding tension in and out of water in constant velocity is important in various fields such as engineering, physics, and biology. It can help in designing more efficient boats and submarines, studying the movement of marine animals, and even in understanding the behavior of liquids on a molecular level.

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