I liked the part where you said the force on the sides of the quadrant balance one another and that the force on the curved surface creates no moment hence we focus on the force at the quadrant vertical face. Thanks a lot for this
@MohammadShafinulHaque2 жыл бұрын
You're welcome 😀
@laoluafuye3227 ай бұрын
I have 3 questions about this experiment 1. How and why does the thrust vary with depth? 2. What happens when the plane becomes fully submerged and why? 3. why might there be discrepancies between the experimental and theoretical results for the thrust?
@deejunyikm-pelajar9724 Жыл бұрын
sir explained so clearly for every step of the experiment, thanks a lot!!
@MohammadShafinulHaque Жыл бұрын
You are welcome.
@justinmccarthy64914 жыл бұрын
Doesn't the submerged portion of the quadrant contribute a buoyancy force? Would that effect the moment in addition to the hydrostatic force?
@MohammadShafinulHaque4 жыл бұрын
Very good question Justin. The buoyancy force is part of the hydrostatic force. The knife-edge pivot coincides with the center of the arc of the quadrant. Any forces on the curved surface pass through the pivot and have no effect on the moment. Forces on both sides are equal and cancel out. Only the force on the rectangular plane contributes to the moment.
@saimsiddiqui15443 жыл бұрын
Very good sir .. Can you explain when this experiment was done on fully submerged and partially submerged surfaces? I couldn't get the concept of partially and fully submerged in experimental point of veiw
@MohammadShafinulHaque3 жыл бұрын
Hi Sami, Look at 6.40 min where the horizontal line represents the water level and the vertical surface is partially submerged. At 8.36 min the verticle surface is fully submerged leading to different COP location. Similarly, around 15.10 min you will see the example of partially submerged, and around 18.09 min you will see a fully submerged scenario.
@saimsiddiqui15443 жыл бұрын
@@MohammadShafinulHaque thanks sir
@MohammadShafinulHaque3 жыл бұрын
@@saimsiddiqui1544 you're welcome.
@azizazaini17002 жыл бұрын
Thank you sir! Have a great day!
@MohammadShafinulHaque2 жыл бұрын
You're welcome.
@minenhleshabane54722 жыл бұрын
Sir would like to know when filling the table, how you calculate the exper.. and theo moment I couldn't understand on the video ,, is there a different ?
@MohammadShafinulHaque2 жыл бұрын
The experimental moment will come from experimental COP (h) and the theoretical moment will come from theoretical COP(h), notice @7.26 minute and 8.26 minute the experimental (h) depends on mass and the theoretical depends on dimensions, and they will be close value but different, thus the moment will be different.
@minenhleshabane54722 жыл бұрын
@@MohammadShafinulHaque Thank you very much
@MohammadShafinulHaque2 жыл бұрын
@@minenhleshabane5472 you are welcome.
@Alyrwani992 жыл бұрын
This so helpful, Thank you very much sir
@MohammadShafinulHaque2 жыл бұрын
You're welcome
@momamun95572 жыл бұрын
Hello sir I have a questions What happens when the plane becomes fully submerged compared to partially submerged and why ?
@MohammadShafinulHaque2 жыл бұрын
The hydrostatic force acting on the vertical face changes. Since the partially submerge has force on only the partially submerged surface. See the force equation at min 7:40 and min 8:40 of the video.
@inaamalawwad Жыл бұрын
What is the difference if we added water first or the weight first?
@MohammadShafinulHaque Жыл бұрын
There is different cases that we test, such as partially submerged or fully submerged. If you pour the water first and don't know how much water you need, you may need to take out water. Make sure you don't have any spill water on the top of the body, that's an added weight.
@waqarkhanyousafzaii74643 жыл бұрын
in fully submerged part of this video experimental formula for finding hR' why it is written mL not mgL plz explain sir where is the gravity force
@MohammadShafinulHaque3 жыл бұрын
Waqar, thank you for your question. Look at video time 8.31 min. Here h = mgL/F, plug the value of force F in the equation and replace the Sp. weight (gamma) = density (rho) * gravitational ACC. (g). Then "g" will cancel out. Hope this helps. :)
@abdullahbinsajjad40702 жыл бұрын
Very good explanation
@MohammadShafinulHaque2 жыл бұрын
Thank you Abdullah
@AlexRodriguez-so4bs3 жыл бұрын
is there a way you could show the derivation for the theoretical Fr?
@moonlight-vx4ti2 жыл бұрын
Can you answer my questions? Is there a difference between the value of theoretical and laboratory force? Why?
@MohammadShafinulHaque2 жыл бұрын
A difference between the theoretical and laboratory force may exist as there is a difference between theoretical and experimental (h). If you observe the force equation it depends on the specific weight and depth of immersion (d), while B (for partially submerged) and B&D (for fully submerged) are fixed. Differences may arise due to human error in reading water temperature, and reading (d), something temperature of the water may change all these can lead to different values.
@moonlight-vx4ti2 жыл бұрын
@@MohammadShafinulHaque Thank you sir, but I have 3 questions besides this question 1- Is the force by weight the same as the experimental force? Why? 2- Any force of water pressure greater, in case of partial immersion or total immersion? Why? 3- What is the relationship between mass and the water depth? Why?
@moonlight-vx4ti2 жыл бұрын
@@MohammadShafinulHaque Can you answer my questions briefly?
@MohammadShafinulHaque2 жыл бұрын
@@moonlight-vx4ti (1) the force by weight is not the same as hydrostatic force (F), as they are related by mgL=Fh, thus mg is not equal to F generally. (2) I am not clear what you are asking in this question, can you clarify your question? Are you asking which force is greater? partial or fully immersed? (3) See the force equation at times 7.40 and 8.40, F increase with depth of immersion d.
@moonlight-vx4ti2 жыл бұрын
@@MohammadShafinulHaque Thank you very muchsir،You helped me a lot. Regarding question 2, yes like this
@vanshdesai57308 ай бұрын
what is the density of the quadrant?
@saraalma20852 жыл бұрын
I really need the answers for the questions, I dont know which formula I should use for each question:(
@MohammadShafinulHaque2 жыл бұрын
What questions?
@hariz22542 жыл бұрын
nice video i like
@MohammadShafinulHaque2 жыл бұрын
thank you
@ZULFERISYAHPUTRA3 жыл бұрын
Dear Sir............Example Problem I have a single acting hydraulic cylinder with a stroke of 300 mm, a bore of 18 mm and a rod of 10 mm if the press weight is 1 mm on the Piston Head what is the pressure.....Please explain the calculations
@MohammadShafinulHaque2 жыл бұрын
Refer to a fluid mechanics book
@hirushagamage13663 жыл бұрын
Thankyou sir
@MohammadShafinulHaque3 жыл бұрын
You're welcome.
@abdallahhachimi657910 ай бұрын
Why didn't u calculate Lcg&Lcp
@e2000-r2l4 жыл бұрын
Thaaaaannnksssssss
@MohammadShafinulHaque4 жыл бұрын
You are welcome Erfan.
@ryzenfurry4132 жыл бұрын
where's is your answer ang solving equations
@MohammadShafinulHaque2 жыл бұрын
All equations needed for this lab are in the video, once you have the lab test data you should be able to solve.