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Chapter 11

Dynamics of Rotational Motions

Coppia
Coppia
Torque is an important quantity for describing the dynamics of a rotating rigid body. We see the application of torque in many ways in the world, such as ...
Calcoli della coppia netta
Calcoli della coppia netta
When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is ...
Equazione della dinamica rotazionale
Equazione della dinamica rotazionale
Angular variables are introduced in rotational dynamics. Comparing the definitions of angular variables with the definitions of linear kinematic ...
Rotolamento senza scivolare
Rotolamento senza scivolare
People have observed the rolling motion without slipping ever since the invention of the wheel. For example, one can look at the interaction between a ...
Rotolamento con scivolamento
Rotolamento con scivolamento
Rolling with slipping is a physical phenomenon that occurs when a rolling object experiences both rotational and linear motion but also experiences ...
Lavoro e potenza per il movimento rotatorio
Lavoro e potenza per il movimento rotatorio
Work and power in rotational motion are completely analogous to work and power in translational motion. The total work done to rotate a rigid body through ...
Teorema dell'energia lavoro per il moto rotatorio
Teorema dell'energia lavoro per il moto rotatorio
The work-energy theorem for rotational motion is analogous to the work-energy theorem in translational motion. It states that the net work done by an ...
Momento angolare: singola particella
Momento angolare: singola particella
Angular momentum is directed perpendicular to the plane of the rotation, and its magnitude depends on the choice of the origin. The perpendicular vector ...
Momento angolare: corpo rigido
Momento angolare: corpo rigido
The total angular momentum of a rigid body can be calculated using the summation of the angular momentum of all the tiny particles rotating in the same ...
Conservazione del momento angolare
Conservazione del momento angolare
A system's total angular momentum remains constant if the net external torque acting on the system is zero. Considering a system that consists of n ...
Conservazione del momento angolare: applicazione
Conservazione del momento angolare: applicazione
A system's total angular momentum remains constant if the net external torque acting on the system is zero. Examples of such systems include a freely ...
Rotazione della parte superiore asimmetrica
Rotazione della parte superiore asimmetrica
By definition, a spherically symmetric body has the same moment of inertia about any axis passing through its center of mass. This situation changes if ...
Giroscopio
Giroscopio
A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis ...
Giroscopio: Precessione
Giroscopio: Precessione
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a ...
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