Angular velocity of an LP record refers to the rate of change of the angular displacement of the record as it rotates around its center point.
Angular velocity of an LP record can be measured using a tachometer, which is a device that measures the number of rotations per minute (RPM) of the record. It can also be calculated by dividing the angular displacement of the record by the time it takes to complete one rotation.
The main factors that affect the angular velocity of an LP record are the size and weight of the record, the speed at which it is rotated, and the friction between the record and the turntable. Other factors such as air resistance and imperfections on the record surface can also have an impact.
The typical angular velocity of an LP record is around 33 1/3 revolutions per minute (RPM) for a standard 12-inch record. However, some records may have a different rotational speed, such as 45 RPM or 78 RPM.
The angular velocity of an LP record is directly related to the sound quality of the record. A higher angular velocity results in a higher frequency of sound, which can affect the overall sound quality and accuracy of the music being played.