![]() Let’s take consideration of a physical body that has a mass of m. dm (2rdr)L Now, the dm expression is further substituted into the dI equation and we get (3) Conversely, we must also find the expression for density. In particular, assuming the flywheels moment of inertia is constant (i.e. Mass moment of inertia is derived from the angular momentum of a system of particles that are stuck together rotating. We denote the Mass Moment of Inertia by I The moment of inertia is related to the rotation of the mass specifically, it measures the tendency of the mass to resist a change in rotational motion about an axis. The Mass Moment of Inertia of the physical object is expressible as the sum of Products of the mass and square of its perpendicular distance through the point that is fixed (A point which causes the moment about the axis passing through it). The physical object is made of the small particles. It is called the moment of inertia of the body about the point at the center of the. This is because it is the resistance to the rotation that the gravity causes. The constant in these equations is the rotational analog of mass. We can measure the moment of inertia by using a simple pendulum. The moment of inertia therefore results on the one hand from the mass to be moved and the square of the length of the. ![]()
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