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What is the moment of inertia of a circular disk rotating about an axis if the mass is m and radius is r?
Wiki User
∙ 7y ago
The answer will depend on whether the axis is
- through the centre of the disk and perpendicular to its plane,
- a diameter of the disk, or
- some other axis.
Unless that information is provided, the answer is meaningless.
Wiki User
∙ 7y ago
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Moment of inertia of hollow cylinder?
The moment of inertia of a hollow cylinder can be calculated with the help of the formula, I=0.5xMxRxR. Here I is inertia, M is mass and R is the radius.
Why does the coasting rotating system slow down as water drips into the beaker?
Ans : By the formula of moment of inertia , I=mr2 (2=square) As by the formula it is clear that the moment of inertia depends on the mass and the radius of a particular body , so as the mass increases moment of inertia will considerably increase , So as the water drips into the beaker the mass of the beaker will increase By the law of conservation of angular momentum Moment of inertia is inversely proportional to the angular velocity ( omega ) , Since in the above case of coasting rotating system moment of inertia is increased so the angular velocity (omega) will also decrease and hence the coasting rotating system will now rotate slowly as compared to its rotation before dripping water !
Calculate the moment of inertia for a frisbee mass 0.40kg radius 12cm?
.00288 kgm^2
What does rotational inertia depend on?
Mass and radius
What two quantities does rotational inertia depend?
mass, velocity and radius
What is the moment of inertia of a disk of radius 12cm and mass 2.4kg from whose edge a circular portion of radius 3cm has been cut off?
It can be done, but it would require taking an integral for the moment of inertia of each particle of the disc... something i don't have the time to do right now ^^;
Moment of inertia of hollow cylinder?
The moment of inertia of a hollow cylinder can be calculated with the help of the formula, I=0.5xMxRxR. Here I is inertia, M is mass and R is the radius.
Why does the coasting rotating system slow down as water drips into the beaker?
Ans : By the formula of moment of inertia , I=mr2 (2=square) As by the formula it is clear that the moment of inertia depends on the mass and the radius of a particular body , so as the mass increases moment of inertia will considerably increase , So as the water drips into the beaker the mass of the beaker will increase By the law of conservation of angular momentum Moment of inertia is inversely proportional to the angular velocity ( omega ) , Since in the above case of coasting rotating system moment of inertia is increased so the angular velocity (omega) will also decrease and hence the coasting rotating system will now rotate slowly as compared to its rotation before dripping water !
The moment of inertia of a solid cylinder is?
the moment of inertia of a solid cylinder about an axis passing through its COM and parallel to its length is mr2/2 where r is the radius.
How do you derive the moment of inertia of solid sphere?
mass moment of inertia for a solid sphere: I = (2 /5) * mass * radius2 (mass in kg, radius in metres)
THE MOMENT OF INERTIA OF A RING ABOUT ONE OF ITS DIAMETERIS L .ITS Moment of inertia about a tangent parallel to the diameter IS?
(1/2)mr^2 where m=mass r=radius
What is the relationship between Moment of inertia and radius of gyration?
I believe it is I = mk^2 where k is radius of gyration and m is mass.
Calculate the moment of inertia for a frisbee mass 0.40kg radius 12cm?
.00288 kgm^2
What is meant by Radius of gyration?
It is the square root of ratio moment of inertia of the given axis to its mass.
If the moment of inertia of a ring of mass M and radius R .what is its diameter?
Its diameter is 2R, whatever the mass.
What is the value of moment of inertia of ellipse about its centroidal axis?
If an ellipse has a radius A long the x-axis and B along the y-axis (A > B) then the moment of inertia about the x-axis is 0.25*pi*ab^3
Radius of gyration of tubular steel of 60 mm diameter pipe?
radius of gyration = sqrt(Moment of inertia/cross section area) Regards, Sumit
