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Dynamic lift - Mechanical Properties of Fluids Video Lecture - Class 11
FAQs on Dynamic lift - Mechanical Properties of Fluids Video Lecture - Class 11
| 1. What is dynamic lift in the context of mechanical properties of fluids? |  |
Ans. Dynamic lift refers to the upward force experienced by an object when it is in motion through a fluid, such as air or water. It is a result of the difference in pressure between the upper and lower surfaces of the object, causing it to be lifted upwards.
| 2. How does dynamic lift occur in fluids? | |
Ans. Dynamic lift occurs due to Bernoulli's principle, which states that as the speed of a fluid increases, its pressure decreases. In the case of an object moving through a fluid, such as an airplane wing or a sail, the shape of the object causes the fluid to move faster over the upper surface and slower over the lower surface. This variation in fluid speed creates a difference in pressure, resulting in the upward force known as dynamic lift.
| 3. What factors affect the magnitude of dynamic lift? | |
Ans. Several factors influence the magnitude of dynamic lift. These include the speed of the object through the fluid, the angle of attack (the angle between the object's surface and the direction of fluid flow), the shape and size of the object, and the density of the fluid. Higher speeds, larger angles of attack, and favorable object shapes tend to increase dynamic lift, while higher fluid density may also contribute to increased lift.
| 4. How does dynamic lift differ from static lift? | |
Ans. Dynamic lift and static lift are two different mechanisms that generate upward forces on objects in fluids. Static lift, also known as buoyancy, occurs when an object is partially or fully submerged in a fluid and experiences an upward force equal to the weight of the fluid displaced. On the other hand, dynamic lift occurs when an object is in motion through a fluid and experiences an upward force due to the difference in pressure between the upper and lower surfaces of the object.
| 5. What are some practical applications of dynamic lift? | |
Ans. Dynamic lift plays a crucial role in various practical applications. In aviation, it allows airplanes to generate the necessary lift to overcome gravity and stay airborne. Sailboats utilize dynamic lift to harness the force of the wind and propel themselves forward. Sports such as kiteboarding and paragliding also rely on dynamic lift to achieve lift and maneuverability. Additionally, dynamic lift is essential for the design and performance of sports cars, submarines, and underwater gliders.
Text Transcript from Video
hello friends this video on mechanical
properties of fluids
5:23 is brought to you by example.com
normal kill from exam please make sure
that you have watched all the videos
from part 1 to 522 before going and
heads with 523 come let us look at
another new concept that is quite
dynamic clip what is dynamic lift it is
an ordinal force that acts on a body by
virtue of its motion to a fluid let us
understand this suppose there is an
object which is moving through a fluid
what happens because of the motion of an
object to a fluid there is a normal
force which acts on the body by the
fluid that normal force is called
dynamic in this phenomenon of dynamic
lift is most popularly observed in
aircrafts that isn't aeroplanes so this
is a very important term which is found
in airplanes what happens whenever the
airplane is flying in the air do you
know its motion to a fluid what is going
to it is nothing but again its or the
atmosphere because of its motion to this
fluid there is a normal force that acts
on the body
that is there is another normal force
exerted by the atmosphere in the upward
direction that is known as dynamic lip
since this force acts in the vertically
upward direction so if this term is
known as lift so it is quite dynamically
so let us keep some examples for example
the airplane wings as I told you next
one is spinning ball in air in case of a
spinning ball in air also we can observe
this dynamic lift that is there is a
upward force terrace and always force
that acts on a ball when it's change to
the air by virtue of the motion
the boy - yeah now we will discuss about
it in detail let us look at the dynamic
list on airplane wings let us suppose
this is an air aeroplane the body of an
aeroplane stream like that is a body is
designed in such a way so that it helps
in the movement of the aeroplane through
the atmosphere now the wings of the
aeroplane if you see if you observe
carefully the wings of the aeroplane
below the games they are there the
atmosphere or the air to say just below
the way they exert an upward pressure on
the wings as a result this aeroplane
inserts are experiences are dynamically
the way it is displayed in this diagram
it is not visible so clearly in our I
mean in reality it is basic basically a
very gradual upward force which is
experienced rider airplane so this is
known as dynamic lip thank you please
visit example calm to watch free
educational videos try to you online
tests get the best quality study
materials study from the best tutors and
mentors and much more thank you once
again
properties of fluids
5:23 is brought to you by example.com
normal kill from exam please make sure
that you have watched all the videos
from part 1 to 522 before going and
heads with 523 come let us look at
another new concept that is quite
dynamic clip what is dynamic lift it is
an ordinal force that acts on a body by
virtue of its motion to a fluid let us
understand this suppose there is an
object which is moving through a fluid
what happens because of the motion of an
object to a fluid there is a normal
force which acts on the body by the
fluid that normal force is called
dynamic in this phenomenon of dynamic
lift is most popularly observed in
aircrafts that isn't aeroplanes so this
is a very important term which is found
in airplanes what happens whenever the
airplane is flying in the air do you
know its motion to a fluid what is going
to it is nothing but again its or the
atmosphere because of its motion to this
fluid there is a normal force that acts
on the body
that is there is another normal force
exerted by the atmosphere in the upward
direction that is known as dynamic lip
since this force acts in the vertically
upward direction so if this term is
known as lift so it is quite dynamically
so let us keep some examples for example
the airplane wings as I told you next
one is spinning ball in air in case of a
spinning ball in air also we can observe
this dynamic lift that is there is a
upward force terrace and always force
that acts on a ball when it's change to
the air by virtue of the motion
the boy - yeah now we will discuss about
it in detail let us look at the dynamic
list on airplane wings let us suppose
this is an air aeroplane the body of an
aeroplane stream like that is a body is
designed in such a way so that it helps
in the movement of the aeroplane through
the atmosphere now the wings of the
aeroplane if you see if you observe
carefully the wings of the aeroplane
below the games they are there the
atmosphere or the air to say just below
the way they exert an upward pressure on
the wings as a result this aeroplane
inserts are experiences are dynamically
the way it is displayed in this diagram
it is not visible so clearly in our I
mean in reality it is basic basically a
very gradual upward force which is
experienced rider airplane so this is
known as dynamic lip thank you please
visit example calm to watch free
educational videos try to you online
tests get the best quality study
materials study from the best tutors and
mentors and much more thank you once
again
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About this Video
Jan 15, 2025
Last updated
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