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Rotational inertia (article) | Khan Academy
https://www.khanacademy.org/science/physics/torque-angular-momentum/torque-tutorial/a/rotational-inertia
WEBRotational inertia is a property of any object which can be rotated. It is a scalar value which tells us how difficult it is to change the rotational velocity of the object around a given rotational axis. Rotational inertia plays a similar role in rotational mechanics to mass in linear mechanics.
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10.3: Dynamics of Rotational Motion - Rotational Inertia
https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/10%3A_Rotational_Motion_and_Angular_Momentum/10.03%3A_Dynamics_of_Rotational_Motion_-_Rotational_Inertia
WEBFeb 20, 2022 · The quantity \(mr^2\) is called the rotational inertia or moment of inertia of a point mass \(m\) a distance \(r\) from the center of rotation. Figure \(\PageIndex{2}\): An object is supported by a horizontal frictionless table and is attached to a pivot point by a cord that supplies centripetal force.
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Moment of inertia - Wikipedia
https://en.m.wikipedia.org/wiki/Moment_of_inertia
WEBThe moment of inertia, otherwise known as the mass moment of inertia, angular/rotational mass, second moment of mass, or most accurately, rotational inertia, of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a rotational axis, akin to how mass …
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Rotational Inertia – The Physics Hypertextbook
https://physics.info/rotational-inertia/
WEBRotational Inertia. discuss ion. summary. practice. problems. resources. Discussion. introduction & theory. Logic behind the moment of inertia: Why do we need this? Definition for point bodies. I = mr2. It's a scalar quantity (like its translational cousin, mass), but has unusual looking units. [kg m 2]
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10.3 Dynamics of Rotational Motion: Rotational Inertia
https://openstax.org/books/college-physics-2e/pages/10-3-dynamics-of-rotational-motion-rotational-inertia
WEBHighlights. Learning Objectives. By the end of this section, you will be able to: Understand the relationship between force, mass and acceleration. Study the turning effect of force. Study the analogy between force and torque, mass and moment of inertia, and linear acceleration and angular acceleration.
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5.3: Rotational Inertia - Physics LibreTexts
https://phys.libretexts.org/Courses/University_of_California_Davis/UCD%3A_Physics_9HA__Classical_Mechanics/5%3A_Rotations_and_Rigid_Bodies/5.3%3A_Rotational_Inertia
WEBSuppose we know the rotational inertias of two separate objects around a common axis. If these two objects are attached so that they rotate together rigidly around that common axis, then the rotational inertia of the combined object is …
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7.4: Rotational Inertia - Physics LibreTexts
https://phys.libretexts.org/Courses/University_of_California_Davis/UCD%3A_Physics_7B_-_General_Physics/7%3A_Momentum/7.5%3A_The_Rotational_Analogs_of_Force_Momentum_Mass_and_Impulse
WEBKErot ≡ 1 2Iω2. where I , is the rotational inertia of a object consisting of point masses: I ≡ N ∑ i = 1mir2 i. The SI units of rotational inertia are kg ⋅ m2. Comparing the expression for linear and angular kinetic energies, we see that rotationalinertia is …
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10.4 Moment of Inertia and Rotational Kinetic Energy
https://openstax.org/books/university-physics-volume-1/pages/10-4-moment-of-inertia-and-rotational-kinetic-energy
WEBDefine the physical concept of moment of inertia in terms of the mass distribution from the rotational axis. Explain how the moment of inertia of rigid bodies affects their rotational kinetic energy. Use conservation of mechanical energy to analyze systems undergoing both rotation and translation.
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Rotational inertia and angular second law review - Khan Academy
https://www.khanacademy.org/science/mechanics-essentials/xafb2c8d81b6e70e3:why-do-helicopters-have-a-second-rotor-on-the-tail/xafb2c8d81b6e70e3:why-does-a-tightrope-walker-hold-a-pole/a/rotational-inertia-ap1
WEBKey terms. Equations. Analyzing rotational inertia. Rotational inertia depends both on an object’s mass and how the mass is distributed relative to the axis of rotation. Unlike other scenarios in physics where we simplify situations by pretending we have a point mass, the shape of an object determines its rotational inertia.
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Moment of inertia | Definition, Equation, Unit, & Facts
https://www.britannica.com/science/moment-of-inertia
WEBFeb 26, 2024 · moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the opposition that the body exhibits to having its speed of rotation about an axis altered by the application of a torque (turning force). The axis may be internal or external and may or may not be fixed.
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490 Rotational Inertia Images
http://go.microsoft.com/fwlink/?LinkID=617350
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