A record player plays records at 78 rotations per minute (rpm). Describe what will happenif the record player is started giving that it is sitting on a frictionless table.
Angular speed, acceleration and displacement
Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.
Angular Position
Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.
A record player plays records at 78 rotations per minute (rpm). Describe what will happenif the record player is started giving that it is sitting on a frictionless table.
A record player which is also known as a phonograph record , is a device the stores audio as analog signals . The type of record player varies with respect to the diameter of the disc , rotational speed of the player and the time capacity which depends on both rotational speed and diameter.
The playing time in a player is directly proportional to the groove length and inversely to the rotational speed The higher the rotational speed of the player lesser will be the time capacity. The standard speed of the player is , because at this parameter the playing time will be less and the quality of the sound produced will be good. If the rotational speed is less than , then the playing time and quality of the sound will be less.
Sound waves are produced from the vibrations of diaphragm , when the sound waves falls on it due to the action of the needle in the player.
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