okay guys here's the scenario: there is a baloon. air is applying a buoyant force to it. the buoyant force is 5958.34 N, mass of the baloon is 140 kg. in this case, is the acceleration of the baloon a = (5958.34 - 140*9.81)/140 or a - 9.81 or something totally different? im just wondering if i have to consider the gravitational acceleration as a negative when calculating the baloon's acceleration.
idk what a buoyant force is, but as long as the force and the movement vectors have the same directions you shouldnt worry about gravitational acceleration
that is, if u are using the simplified models. if not then the task becomes much more complicated i think
that doenst have anything to do with simplified models
if u are not using simplified models u need to consider a lot more things such as the density of the object, air friction, the density of the object applying the force (air, water etc)
OKAY JUST FORGET ABOUT ALL THAT GUYS, HERES THE QUESTION: you are lifting something upwards. Force you apply=5958.34 N, m=226.76 kg, g=9.81 m/s^2
just calculate the acceleration for me, okay? and then im gonna compare our answers.
in newtonian mechanics u just make the projection of the forces on cartesian coordinate system (be it 2d or 3d, usually 2d) and then write the equations for every object involved, gravitational acceleration is only used to calculate the weight of said objects, its direction will always be downwards, and it's reaction will vary depending on wether it interacts with other objects or not
classical mechanics are usually fairly easy, except for orbital motions which ive always hated but i rarely encountered tasks involving that
we started relativistic mechanics 2 weeks ago and shit is slowly but surely hitting the fan
cant wait for quantum mechanics on 2nd semester !!
im taking this computer art and design class and we r working with adobe illustrator rn
im making this ember spirit design
ill show u when im done
itll be lit
guys, heres another one for you: a gas in a container has a pressure of 0.75 bar. how much would it be in terms of cm-Hg? normally i would just go like bar -> atm -> mmHg, but the question gives me the density of Hg (13600 kg/m^3) and g as 9.81. is there a way of calculating this by using these two things?
power = amoutn of elements in a set i believe, but im not sure
R=real numbers set
R^2 = R x R = {(a,b)|a,b ∈ R}
idk if this is set power but this is what we are working with atm @ vector spaces
im niot sure its actually called power but yea its the amount of elements in a set
ok nvm its called cardinality whoOPs!
okay guys here's the scenario: there is a baloon. air is applying a buoyant force to it. the buoyant force is 5958.34 N, mass of the baloon is 140 kg. in this case, is the acceleration of the baloon a = (5958.34 - 140*9.81)/140 or a - 9.81 or something totally different? im just wondering if i have to consider the gravitational acceleration as a negative when calculating the baloon's acceleration.
accel=force/mass
idk what a buoyant force is, but as long as the force and the movement vectors have the same directions you shouldnt worry about gravitational acceleration
that is, if u are using the simplified models. if not then the task becomes much more complicated i think
buoyant force = the force air applies to the baloon so that it can fly. i know about F = m*a but i guess its just that, no need to complicate things.
why much more complicated?
if the force goes in the opposite direction, just use -g, if it goes with it use g
so if the baloon moves upwards, u use -g because g pulls the balloon down
that doenst have anything to do with simplified models
if u are not using simplified models u need to consider a lot more things such as the density of the object, air friction, the density of the object applying the force (air, water etc)
ye its negative if you say upwards accel is positive
OKAY JUST FORGET ABOUT ALL THAT GUYS, HERES THE QUESTION: you are lifting something upwards. Force you apply=5958.34 N, m=226.76 kg, g=9.81 m/s^2
just calculate the acceleration for me, okay? and then im gonna compare our answers.
prob (5958,34 N/226,76 kg) - 9,81 m/s^2
in newtonian mechanics u just make the projection of the forces on cartesian coordinate system (be it 2d or 3d, usually 2d) and then write the equations for every object involved, gravitational acceleration is only used to calculate the weight of said objects, its direction will always be downwards, and it's reaction will vary depending on wether it interacts with other objects or not
u mean the acceleration of my spine crushing through the rest of my body after i try lifting a 200kg object?
https://i.imgur.com/HsBB2lv.png
5958.35-2267.6=226.76*a
a=16.28 m/s^2
lmao
alright you both found something around 16 so did i so thats correct i guess. i think i got confused because of the way the question is asked.
oh nvm i used gravitational acceleration ≈ 10 m/s^2 instead of 9.81, so accel will be a bit higher
classical mechanics are usually fairly easy, except for orbital motions which ive always hated but i rarely encountered tasks involving that
we started relativistic mechanics 2 weeks ago and shit is slowly but surely hitting the fan
cant wait for quantum mechanics on 2nd semester !!
fun fact: ive passed my physics exam with an A and i know zilch about quantum mechanics
or does photoeffect count
Convo between you and your mum? Roasted!! 😈😈😈😈
Man are there bed bugs in my bed or do ticks still live in October
Over the past few days k got several bites on my feet arms and legs
welcome to the dorm
What do I do if they're bed bugs
eat your bed
idk i dont have bed bugs iirc u pour boiling hot water on ur matress or smth because they dislike heat
im taking this computer art and design class and we r working with adobe illustrator rn
im making this ember spirit design
ill show u when im done
itll be lit
hot? neva that
computer art xd
fock u
my school makes 1 art course mandatory for graduation, so im taking a single, pretty interesting art course my senior year
ok
i like it when exams are around the corner and ayy lmao turns into mathcentral
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hahaha a true classic!! xD
found a marvelous song on a porn movie
rofl
guys, heres another one for you: a gas in a container has a pressure of 0.75 bar. how much would it be in terms of cm-Hg? normally i would just go like bar -> atm -> mmHg, but the question gives me the density of Hg (13600 kg/m^3) and g as 9.81. is there a way of calculating this by using these two things?
Ye u kys
dont u have a formula book for this kinda stuff?
whzat if your mom orbits my dick
i dont remember much about thermodynamics ive always hated this part of physics, only studied it for hs finals and ive forgotten everything since then