A bar of length 1 meters and mass 5 kg is pulled to the right by an angle 45.0 degrees, and is then released from rest. A) At the bottom of the swing, what is the magnitude of the angular velocity? Express your answer in terms of radians per second B) At the bottom of the swing what is the speed of the center of mass? Express your answer in terms of meters per second
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).
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