Force needed to pull something from something liquid

In summary, the force needed to pull an object from a liquid is known as the buoyant force and is equal to the weight of the liquid displaced by the object. The weight of the object, density of the liquid, and shape of the object all play a role in determining this force. The denser the liquid and the heavier the object, the greater the buoyant force needed. The shape of the object also affects the force needed, as it determines the volume and therefore the amount of liquid displaced. This force can be calculated using the formula Fb = ρVg, where Fb is the buoyant force, ρ is the density of the liquid, V is the volume of the object submerged, and g is the
  • #1
Lightsyn
3
0
Hi... any idea on how to calculate force needed to pull up something stuck on the ground?
ex:
Boot stuck on mud
person sinking on quicksand
or car sinking in water
 
Last edited:
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  • #2
Depends on the situation. In general, there is no formula where you could just plug in numbers.
 
  • #3
What about a force diagram?
perhaps a way to calculate the force of the suction of mud?
does pressure has something to do with it?
 
  • #4
Nothing simple and general. For materials like mud or quicksand the force may even depend on how fast you try to pull something out of it.
 

Related to Force needed to pull something from something liquid

What is the force needed to pull an object from a liquid?

The force needed to pull an object from a liquid is known as the buoyant force. This force is equal to the weight of the liquid displaced by the object.

Does the weight of the object affect the force needed to pull it from a liquid?

Yes, the weight of the object does affect the force needed to pull it from a liquid. The heavier the object, the greater the buoyant force needed to lift it.

How does the density of the liquid affect the force needed to pull an object from it?

The density of the liquid plays a crucial role in determining the force needed to pull an object from it. The denser the liquid, the greater the buoyant force and therefore, the more force needed to pull the object from it.

Is the shape of the object important in determining the force needed to pull it from a liquid?

Yes, the shape of the object does affect the force needed to pull it from a liquid. The shape of an object determines its volume, which in turn affects the amount of liquid displaced and the buoyant force acting on it.

How can the force needed to pull an object from a liquid be calculated?

The force needed to pull an object from a liquid can be calculated using the formula Fb = ρVg, where Fb is the buoyant force, ρ is the density of the liquid, V is the volume of the object submerged, and g is the acceleration due to gravity.

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