Application of Pascals Law - Mechanical Properties of Fluids Video Lecture - Class 11

hello friends this video on mechanical
properties of fluids at 11:00 is brought
to you by exam Fiat Farm no more year
from exam please make sure that you have
watched all the videos from parts 1 2 5
10 before going ahead with part 11 let
us look at hydraulic rates
now let us look at water hydraulic rates
so even hydraulic breaks makes use of a
fluid and Co Pascal's law of fluid
pressure
I adore brakes are nothing but if you
think it in this way that when you drive
a car these are the applied things the
car stops right so the same breaks using
a mechanism of fluid which is not
generally used everywhere but we will
take the example of your car let us
suppose we're driving a car you've
applied brake and the car stopped so
basically what happened what did you do
to stop the car you did nothing
let us suppose if this is your shoe and
this is the brake this is your coat and
this is the deep pedal right so what you
get you basically apply the force here
right this is what you do inside the car
so you apply the force on this pedal and
the car stop now what was the mechanism
even inside this this is a rough diagram
which shows the mechanism just have a
very clear look what happened
imagine this side the smaller
cross-sectional area side this side
shows this side represents the brake
pedal where you are applying the brake I
mean this thing this brake pedal where
you are applying a force is nothing but
this smaller cross-sectional area and
the piston so here you are applying a
smaller force now there is a fluid which
connects this there is a fluid setup
which connects this brake pedal to all
the four wheels of the car so here for
just for the sake of explanation I have
just shown it to only one B but
basically all the poor means are
connected in the street pedal and what
is the medium the medium is nothing but
a fluid which is generally the brake oil
right so what happens is when you apply
a see if you see this initially the
wheel is moving as soon as you apply a
force here that is you apply a force on
the pedal the a pressure is exerted here
on the fluid and the same pressure gives
rise to a force on the larger
cross-sectional area in which is
connected to the V so because of that
force when that force is exerted on the
wheel the wheel stops now this set up
and the brake pedal is re taking all the
four wheels now as soon as all the poor
Hill stops the car stops so that is how
it was so here also the same thing
happens here you apply a smaller force
f1 on s1 and cross sectional area say if
you like so a pressure is exerted CP
so the same pressure reaches there and
let us save this cross-section enables
evening so what is the force that is
develop here the force f2 that is
developed here is nothing but pressure P
in AP and what is pressure P it is
nothing but F 1 by n ey into 80 so that
means your input is again adding 5 by 8
by human tanks so if you if you have
understood the concept of hydraulic lift
you would find it very similar and just
analogous to what we have studied there
well so there are numerous applications
where such small small roles they are
very important so so here we observe
that the pressure which we applied on
the pedal or the force which we applied
on the pedal which resulted in a
pressure was transmitted equally to all
the four wheels to the great point right
oh thank you
please visit exam few calm to watch free
educational videos try 3 online tests
get the best quality study materials
study from the best tutors and mentors
and much more thank you once again