Rotational motion involves torque and angular momentum from "summary" of Fundamentals of Physics, Volume 1 (Chapters 1 - 20) by David Halliday,Robert Resnick,Jearl Walker
In rotational motion, the relationship between torque and angular momentum plays a crucial role. Torque, which is the rotational equivalent of force, causes an object to rotate around an axis. This torque is directly proportional to the force applied and the distance from the axis of rotation. Just as force changes the linear momentum of an object, torque changes the angular momentum of an object in rotational motion. Angular momentum is a vector quantity that describes the rotational motion of an object. It is the product of the object's moment of inertia and its angular velocity. The conservation of angular momentum states that in the absence of external torque, the total angular momentum of a system remains constant. This principle is similar to the conservation of linear momentum in linear motion. When an external torque is applied to an object in rotational motion, it causes a change in the object's angular momentum. This chang...
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