Lifting a boat question

[StekFence]

So let’s say someone is lifting a sunken boat. The bouyancy of the boat is counteracted by the fact that it is filled with water right? The boat is displacing a boats worth of water but is filled with a boats worth of water so it cancels out. Would this be correct?

 

[Vzearr]

So let’s say someone is lifting a sunken boat. The bouyancy of the boat is counteracted by the fact that it is filled with water right? The boat is displacing a boats worth of water but is filled with a boats worth of water so it cancels out. Would this be correct?

No.

 

[StekFence]

Ok so how would I go about determining how much the boat effectively weighs

 

[Vzearr]

By using buoyant force.

 

[StekFence]

I understand buoyant force is pushing it up, but the weight of the water inside the flooded ship is weighing it down, that’s why it sinks right? I guess what I’m trying to ask if there’s a way for me to find out the weight of the added water

 

[Vzearr]

I guess what I’m trying to ask if there’s a way for me to find out the weight of the added water

Don't know why you'd need that, but, you can find the weight of the added water by multiplying the volume of water inside the boat by the water’s density and gravity.