I love your small interesting digressions when you teach! Your power in explaining concepts is phenomenal :D May God bless you in your mission of free World Class Education to all!
you are a legend, your videos always make me change the way i think about these problems. Could you please make videos about hydrostatics.I am really struggling with them. thanks again
No, he got it right. Vs/Vb is telling you what percentage of the object is submerged while Ps/Pb is telling you the specific gravity. If you switched it, the whole proportion would be messed up and basically it would be saying the volume submerged is greater than the block itself. Then the object wouldn't be floating....
what i find very puzzling and confusing is in the buoyant force equation you have to put volume of water displaced ,but if the volume is the same for two objects and one of them has less mass and there both denser than water how would the bouyant force be the same for both if they have different densities. Please respond thankyou
Sir I have some few question about density and buoyancy force No. 1 =Is hot water more dense or cold? i think cold is more dense. No. 2 = if cold water more dense what it mean is it more buoyancy?i think cold water more buoyancy. No.3 =if cold water more dense so does it help for swimming easily? i think cold water help swimming. No.4 =is water more dense mean more buoyancy easy to float or less dense mean less buoyancy difficult to float?
In the last video he said that Fnet = Pwater . gravity . d3 (volume) so why is he not using the net force of 2N and is instead using 8N force upwards? Also if the force down is 10N and force up is 8N then should this block just sink? what is the counteracting to prevent his block from sinking?
in previous video you said that the net force equals the weight displaced...here the net force is 2N so shouldnt it be equal to the weight of liquid displaced?
Why do we use g for the force acting on the bottom of the object? If the force acting on the bottom acts upwards and gravity acts downwards, why is g included?
@@JoseShajiOfficial Interesting... When I was watching this I was in high school. I concluded a graduation and master at mechanical engineering. Turns out I started not enjoying engineering and changed career. I think I changed my mind, the example is ok at best.
I wonder what the person was thinking when they clicked the thumbs down button...? I'm only in 8th grade, but my physics teacher wants me to take 4 pages worth of notes on this fluid series. Haha, it's a bit difficult to understand using only letters.
He was doing very rough calculating just so you have an Idea of the size of the cube. There are roughly 3 feet in a meter, so there are 3^3 feet in a cubic meter which equals 27 cubic feet. He also misspoke.
I love your small interesting digressions when you teach! Your power in explaining concepts is phenomenal :D May God bless you in your mission of free World Class Education to all!
Your explaining language is so easy to gauge the concept. That anyone can get it’s complicated language to a simple one. Thanku so much
"It could have been shaped like a horse."
you are a legend, your videos always make me change the way i think about these problems. Could you please make videos about hydrostatics.I am really struggling with them. thanks again
13 years later and he's still a legend just wow.
i like how u casually start your videos like a casual convo
No, he got it right. Vs/Vb is telling you what percentage of the object is submerged while Ps/Pb is telling you the specific gravity. If you switched it, the whole proportion would be messed up and basically it would be saying the volume submerged is greater than the block itself. Then the object wouldn't be floating....
thank you, now I understand buoyant force for my quarter exam
fr
Yes, the fraction submerged is equal to its specific gravity.
11 years ago, are you still alive
Are you alive?
13 years ago
@@tranquilious rip
what i find very puzzling and confusing is in the buoyant force equation you have to put volume of water displaced ,but if the volume is the same for two objects and one of them has less mass and there both denser than water how would the bouyant force be the same for both if they have different densities. Please respond thankyou
best youtube ever hands down
great video im in 8th grade and I feel like the current curriculum is for 2nd graders so I started doing this in my spare time.
Hey Gavin can we forward this to like, teaching circles?
OMG thank you so much. I've been struggling with my tutorial question for ages, Now I get it!
frrr
my textbook didn't express that important detail about Archimedes principle, but still ask a question directly from it. I hate my book
mine is the same it sucks
How do you get from cubic meter to square feet? Missing a Dimension here?
Sir I have some few question about density and buoyancy force
No. 1 =Is hot water more dense or cold? i think cold is more dense.
No. 2 = if cold water more dense what it mean is it more buoyancy?i think cold water more buoyancy.
No.3 =if cold water more dense so does it help for swimming easily? i think cold water help swimming.
No.4 =is water more dense mean more buoyancy easy to float or less dense mean less buoyancy difficult to float?
Percentage of the Volume of that substance submerged would be specific gravity of that substance multiplied by 100
super eth nangalk prayojanam ullathan thanku
da malayalathil paranjal evanmarkonum manasalavathilya
Malayalis here malayalis there malayalis everywhere pwoli
Thank you so much for this ...it is really helpful 😍
I appreciate you so much..honestly
In the last video he said that Fnet = Pwater . gravity . d3 (volume) so why is he not using the net force of 2N and is instead using 8N force upwards?
Also if the force down is 10N and force up is 8N then should this block just sink? what is the counteracting to prevent his block from sinking?
The block is sinking, that's why the net force is not equal to the weight of the object
Thanks Sal. This Video helped me a lot.
This help me to finally understand this topic and question!!!!!!
i looked at his calculator and immediatly knew it is 2008
in previous video you said that the net force equals the weight displaced...here the net force is 2N so shouldnt it be equal to the weight of liquid displaced?
prithvi raj buoyancy force is 8N
The buoyant force is only equal to the weight displaced when it floats, this is a sinking object, so the upthrust equals loss in weight
So this only works for blocks and horses. Good to know!
thnx sal
Khan ..! God bless u
Does this mean that the fraction of the floating object submerges is equal to its specific gravity?
The net force downwards is 2N, but he's working out the volume of water displaced, so you use the buoyant force of 8N.
I love this place
Why do we use g for the force acting on the bottom of the object? If the force acting on the bottom acts upwards and gravity acts downwards, why is g included?
Basic Newton principle F=ma
the second example was beautiful!
you thought the second example was beautiful 12 years ago
@@JoseShajiOfficial Interesting... When I was watching this I was in high school. I concluded a graduation and master at mechanical engineering. Turns out I started not enjoying engineering and changed career.
I think I changed my mind, the example is ok at best.
excellent example
Fluids made easy. Great stuff.
Very good!!
i wonder if its correct or not but the whole object is displaced therefore i would use the 10N.. ^^
Interesting video...
@spikeyredcactus
devide both sides by VB and by PW and flipped sides.
I tryed to write all stepps down, but it's really hard with a keybord xD
good math!
do i have to memorize the densities
+mbuso mabuza No, they are usually given on the test. You probably have to know the density of water is equal to 1000 kg/m3
와.정.말.재.밌.다
how can you convert cubic feet to square feet?
one person failed in life lol who the eff dislikes this video it made so much sense hope i could ace my final now lol
I wonder what the person was thinking when they clicked the thumbs down button...?
I'm only in 8th grade, but my physics teacher wants me to take 4 pages worth of notes on this fluid series. Haha, it's a bit difficult to understand using only letters.
Are you in 20th grade right now?
its really confusing when you convert it to ft^2
and 1 cubic meter = 10.7639 square feet
where did that 27 came from. Can someone explain.
He was doing very rough calculating just so you have an Idea of the size of the cube. There are roughly 3 feet in a meter, so there are 3^3 feet in a cubic meter which equals 27 cubic feet. He also misspoke.
The actual math is 0.0083 m^3 = 50.0395 inches^3. He miss notated it as ^2 squared but he is close for approximating. I hope that helps someone.
What do you know sir??
I need to go back to school to keep up
Thank you!
whoa
why it turns 240p
Nice
ashok da
Why did you divide 1000 times 9.8? I thought you had to multiply it
First problem error: he kept mixing sq in with in^3.
damn
i wish i could use these videos on the ap test
ap tests 11 years ago whoa
9.8 m per second squared is not gravity but acceleration...
nah not acceleration but acceleration due to gravity. And when he says gravity that what he means mate. hahah
w
couldve been SHAPED like a horse....i dont think a horse has a specific density
dont you mean cubed feet? (not square feet)
Are you still alive ?
i just love you so much
him: weight of water ... i dont know... 10N
me: dafuq stating naive but giving its value anyway!
You know he's just coming up with some random number to use as an example.
When being forced to watch this for school, I wish RUclips had a 3x speed feature.
It have
when did the writing become so fuzzy
this video was made in 2008
a
34 square inches I think not
50.0395 cubic inches but he was approximating from using the rough 27 cubic feet per cubic meter.
larry
🙂👍🏻
It could be a Horse ? hahaha good one
R u still alive ?
ripo
read me bedtime stories plz
Import turtle