A compound disk of outside diameter 128 CI is made up of a uniform solid disk of radius 44.0 cm and area density 4.30 g/cm² surrounded by a concentric ring of inner radius 44.0 cm, outer radius 63.0 cm, and area density 1.20 g/cm². You may want to review (Page). For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Moments of inertia for different rotation axes. Part A Find the moment of inertia of this object about an axis perpendicular to the plane of the object and passing through its center ΠΙΑΣΦ 4 ? I= kg-m² Submit Previous Answers Request Answer

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Rigid Body

A rigid body is an object which does not change its shape or undergo any significant deformation due to an external force or movement. Mathematically speaking, the distance between any two points inside the body doesn't change in any situation.

Rigid Body Dynamics

Rigid bodies are defined as inelastic shapes with negligible deformation, giving them an unchanging center of mass. It is also generally assumed that the mass of a rigid body is uniformly distributed. This property of rigid bodies comes in handy when we deal with concepts like momentum, angular momentum, force and torque. The study of these properties – viz., force, torque, momentum, and angular momentum – of a rigid body, is collectively known as rigid body dynamics (RBD).