A rigid body is made of threeidentical thin rods, each with lengthL = 0.600 m, fastened together in theform of a letter H . Thebody is free to rotate about a horizontalaxis that runs along the lengthof one of the legs of the H. The bodyis allowed to fall from rest from a position in which the plane of theH is horizontal.What is the angular speed of the body when theplane of the H is vertical?
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).
A rigid body is made of three
identical thin rods, each with length
L = 0.600 m, fastened together in the
form of a letter H . The
body is free to rotate about a horizontal
axis that runs along the length
of one of the legs of the H. The body
is allowed to fall from rest from a position in which the plane of the
H is horizontal.What is the angular speed of the body when the
plane of the H is vertical?
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