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3: What Is the net force on 0.01 m? brick sitting on the bottom of shallow pool filled with water: Assume the density ofthe brick is 5,000 kg/m'and the density...

Question

3: What Is the net force on 0.01 m? brick sitting on the bottom of shallow pool filled with water: Assume the density ofthe brick is 5,000 kg/m'and the density of water is 1000 kglm .

3: What Is the net force on 0.01 m? brick sitting on the bottom of shallow pool filled with water: Assume the density ofthe brick is 5,000 kg/m'and the density of water is 1000 kglm .



Answers

(a) What is the buoyant force on $0.90 \mathrm{kg}$ of ice floating freely in liquid water? (b) What is the buoyant force on $0.90 \mathrm{kg}$ of ice held completely submerged under water?

So here we first have the surface of the water. We have the iceberg and we have some percentage above the surface of the water and some percentage below. So we can say that. Then first we have a buoyancy force going upwards and going downwards would be the gravitational force for the iceberg. We can say that then the sum of forces in the Y direction would equal the mass times the acceleration of y direction, acceleration in the Y direction is zero. And so we find that then the buoyancy force minus the gravitational force would equal zero. Buoyancy force equals the gravitational force. We know the gravitational forces equaling two MG. And we know the buoyancy force would be the density of the seawater, essentially the density that of the liquid that is being displaced. In this case the liquid that is being displaced as seawater, not the ice. And so then this would be multiplied by the volume that submerged or the volume that's displaced. In this case the volume that's displaced would be equal to the volume submerged of the volume of the iceberg that is submerged underneath the surface of the water. This would then be multiplied by G. And so we have the 10 buoyancy force Is going to be equal to the density of Seawater 1024 kilograms per cubic meter, multiplied by the volume that submerged. We know that this would be equal to the volume that's above 4205.3 m3. This would then be divided by 0.0 point 104 or 10.4%. This would then be multiplied by 9.81 m/s squared. So we find that then the buoyancy force is going to be equal to 4.06 times 10 to the eighth Newton's. That is the end of the solution. Thank you for watching

So we have a lock which is completely submerged in water and we have to find the bite force. And that's the fourth thing that's first find confined him displaced and the violin displaced would simply be equal to the volume off the block, since it is completely sub might. So that is equal to 0.1 times 0.2 times 0.3, which is 0.6 meter cube and then the force of points. He is equal to the density off water times g times the volume which is displeased. So density water is 1000 kilogram either prosecute times G is 9.8 times displaced Volume is your parents yours. You're six and that gives me the right force is equal to 59 years.

You know that when a body immerse in a feud address, the bottom surface experiences greater pressure. Then the top surface of the body because the pressure depends on the death. So the body experience of Israel can force acting vertically of parts. Now this were apart force is called as by any force, so the magnitude of the bio force is equal to the weight of the volume of the fuel displaced. Or we can right this as W equal to and G. Now here M is the mass of the water displays and G. Is the isolation due to gravity. Now we also know that masks can be expressed as a product of volume and the density which can be Lieutenants. I am equal to. We multiply by role no hands. We is the volume and rule is the density of the water. Now we replace and the roe V. And the about equation. So we get w It will do role. We G. Now in this equation we substitute 0.10 m, multiplied by zero point continue to multiply by 0.30 m for volume V 9.8 m per second square for G n 1000 kg per meter q four row. Therefore we get W equal to 0.10, multiplied by 0.0 more people that buy 0.30. Most people are by 1000. Multiply by nine point mm. Well after multiplication we get W is equal to 58.8 neutral. Or we can write this as W equal to 50 nine nutrients. Therefore the bite force acting on the body is 59 newton.

Problem. We have given that an iceberg, this is supposed iceberg and this is the water. Mhm. It has given that 10.45% of the volume of the iceberg is and of the surface of the water. that means 89.55% of the volume is submerged in the water. Right? So we have to find the force of the seawater exert on the iceberg. So we know that that force is equal to Beyonce force and we know that Beyonce force is equal to mhm volume, which is submerged into density of water into G. Now we have given this 10.545% is equal 4-0 5.3 m Q. Now we have to find this percentage. So we submerged is equal to 4205 13 Endo 89.55, divided by 10.45. So this is a call to If we solve this 45.3 multiplied it 89.55, divided by 10.45. So this is a call to 36036.8 m Cube. So this is the volume which is submerged in the water. So we will put this value here 36036.8 multiply with 1024 into 9.8, So it is equal to around 3.6 into 10 to the power eight Newton. This is the answer. Thank you.


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