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Chapter 11

Dynamics of Rotational Motions

عزم الدوران
عزم الدوران
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 ...
حسابات صافي عزم الدوران
حسابات صافي عزم الدوران
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 ...
معادلة ديناميكيات الدوران
معادلة ديناميكيات الدوران
Angular variables are introduced in rotational dynamics. Comparing the definitions of angular variables with the definitions of linear kinematic ...
المتداول دون الانزلاق
المتداول دون الانزلاق
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 ...
المتداول مع الانزلاق
المتداول مع الانزلاق
Rolling with slipping is a physical phenomenon that occurs when a rolling object experiences both rotational and linear motion but also experiences ...
العمل والقوة للحركة الدورانية
العمل والقوة للحركة الدورانية
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 ...
نظرية العمل والطاقة للحركة الدورانية
نظرية العمل والطاقة للحركة الدورانية
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 ...
الزخم الزاوي: جسيم واحد
الزخم الزاوي: جسيم واحد
Angular momentum is directed perpendicular to the plane of the rotation, and its magnitude depends on the choice of the origin. The perpendicular vector ...
الزخم الزاوي: جسم صلب
الزخم الزاوي: جسم صلب
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 ...
الحفاظ على الزخم الزاوي
الحفاظ على الزخم الزاوي
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 ...
الحفاظ على الزخم الزاوي: التطبيق
الحفاظ على الزخم الزاوي: التطبيق
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 ...
دوران الجزء العلوي غير المتماثل
دوران الجزء العلوي غير المتماثل
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 ...
جيروسكوب
جيروسكوب
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 ...
الجيروسكوب: Precession
الجيروسكوب: Precession
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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