Question

Какие из перечисленных характеристик движения не изменяются при удалении рассматриваемой точки от центра вращения диска?1. Линейная скорость. 2. Перемещение. 3. Пройденный путь.4. Угловая скорость. 5. Угловое ускорение.

Answer 1

4.  Угловая скорость.      
5. Угловое ускорение.
не изменяются при удалении  рассматриваемой точки от центра вращения
диска?

Answer 2

Characteristics of Motion in Rotational Motion

When considering the motion of a point on a rotating disk, certain characteristics remain constant regardless of the distance of the point from the center of rotation. These characteristics include:

1. Linear Velocity - The linear velocity of a point on a rotating disk does not change with its distance from the center of rotation. This means that the speed at which the point moves in a straight line remains constant, regardless of its radial position on the disk.

2. Displacement - The displacement of a point on a rotating disk, which refers to the change in position of the point, also remains constant regardless of its distance from the center of rotation. This means that the overall change in position from the starting point to the current point remains the same, irrespective of the radial distance from the center.

3. Distance Traveled - The distance traveled by a point on a rotating disk, also known as the path length, remains constant regardless of its radial position. This means that the total length of the path covered by the point as it moves around the disk remains the same, regardless of its radial distance from the center of rotation.

4. Angular Velocity - The angular velocity of a point on a rotating disk, which refers to the rate of change of angular displacement, remains constant regardless of its radial distance from the center of rotation. This means that the speed at which the point rotates around the center remains the same, regardless of its radial position on the disk.

5. Angular Acceleration - The angular acceleration of a point on a rotating disk, which refers to the rate of change of angular velocity, also remains constant regardless of its radial distance from the center of rotation. This means that the rate at which the angular velocity of the point changes remains the same, irrespective of its radial position on the disk.

In summary, the linear velocity, displacement, distance traveled, angular velocity, and angular acceleration of a point on a rotating disk all remain constant regardless of the point's distance from the center of rotation.