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Darkmisc
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Does it make sense to think of a point particle's rotation? Or does the particle need to be more than one point in dimension so that parts of it can exist either side of an axis of rotation?
Rotation of a point particle refers to the movement of a particle around a fixed point or axis. It involves a change in the position and orientation of the particle in space.
Rotation of a point particle is caused by external forces acting on the particle, such as torque or angular momentum. These forces cause the particle to move in a circular or curved path around a fixed point.
The rotation of a point particle is measured in terms of its angular displacement, which is the change in the particle's angle or orientation from its initial position. It can also be measured in terms of its angular velocity, which is the rate of change of its angular displacement over time.
No, a point particle can only rotate in one direction at a time. This is because rotation involves a change in orientation, and a particle can only have one orientation at a given moment.
Rotation and revolution both involve movement around a fixed point, but rotation refers to a change in orientation while revolution refers to a change in position. In other words, rotation involves a change in the angle or orientation of the particle, while revolution involves a change in its position in space.