A 3.5-inch floppy disk in a computer rotates with a period of 1.4 × 10−1 ?. What are (a) the angular speed of the disk and (b) the linear speed of a point on the rim of the disk? (c) Does a point near but not the center of the disk have an angular speed that is greater than, less than, or the same as the angular speed found in part (a)? (Note: A 3.5-inch floppy disk is 3.5 inches in diameter.
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 3.5-inch floppy disk in a computer rotates with a period of
1.4 × 10−1
?. What are (a) the angular speed of the disk and (b) the linear
speed of a point on the rim of the disk? (c) Does a point near but not the
center of the disk have an angular speed that is greater than, less than, or
the same as the angular speed found in part (a)? (Note: A 3.5-inch floppy
disk is 3.5 inches in diameter.
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