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Radius of gyration is indirectly to the parallel axis theorem. The parallel axis theorem gives the moment of inertia ______________ to the surface of considesrance.
  • a)
    Linear
  • b)
    Non-Linear
  • c)
    Perpendicular
  • d)
    Parallel
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Radius of gyration is indirectly to the parallel axis theorem. The par...
Parallel axis for any area is used to add the two mutually perpendicular moment of inertias for areas. It gives a moment of inertia perpendicular to the surface of the body. That is the moment of inertia perpendicular to the surface in considerance.
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Radius of gyration is indirectly to the parallel axis theorem. The par...
Parallel Axis Theorem and Moment of Inertia

The parallel axis theorem is a fundamental concept in mechanics that relates the moment of inertia of an object about an axis to its moment of inertia about a parallel axis. It states that the moment of inertia about any axis parallel to an axis through the center of mass is equal to the moment of inertia about the center of mass plus the product of the mass of the object and the square of the distance between the two axes.

Understanding the Moment of Inertia

The moment of inertia of an object is a measure of its resistance to rotational motion about a particular axis. It depends on the distribution of mass around the axis of rotation. In simple terms, it is a measure of how spread out or concentrated the mass is with respect to the axis of rotation.

Radius of Gyration and Moment of Inertia

The radius of gyration is a parameter that quantifies the distribution of mass of an object about an axis. It is defined as the square root of the ratio of the moment of inertia of the object to its total mass. Mathematically, it can be expressed as:

Radius of Gyration = √(Moment of Inertia / Mass)

The radius of gyration provides a measure of how the mass of an object is distributed with respect to a given axis. Objects with a larger radius of gyration have their mass more spread out, while objects with a smaller radius of gyration have their mass concentrated closer to the axis of rotation.

Relation between Radius of Gyration and Parallel Axis Theorem

The parallel axis theorem provides a method to calculate the moment of inertia of an object about an axis parallel to a known axis. By using this theorem, we can determine the moment of inertia of an object about any axis parallel to its centroidal axis.

The parallel axis theorem allows us to calculate the moment of inertia of an object about an axis that is not passing through its center of mass. By considering the distance between the two axes, we can determine the additional moment of inertia needed to account for the displacement of the axis.

The radius of gyration is indirectly related to the parallel axis theorem because it provides a measure of how the mass of an object is distributed about an axis. By calculating the radius of gyration, we can determine the moment of inertia of an object about its centroidal axis. The parallel axis theorem then allows us to calculate the moment of inertia about any parallel axis by considering the displacement between the two axes.

Therefore, the moment of inertia is perpendicular to the surface of consideration, as it is determined based on the distance between the centroidal axis and the parallel axis.
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Radius of gyration is indirectly to the parallel axis theorem. The parallel axis theorem gives the moment of inertia ______________ to the surface of considesrance.a)Linearb)Non-Linearc)Perpendiculard)ParallelCorrect answer is option 'C'. Can you explain this answer?
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