A disk rotates about an axis through its center. Point A islocated on its rim and point B is located exactly halfwaybetween the center and the rim. What is the ratio of (a) theangular velocity vA to that of vB, and (b) the tangential velocityvA to that of vB?
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 disk rotates about an axis through its center. Point A is
located on its rim and point B is located exactly halfway
between the center and the rim. What is the ratio of (a) the
angular velocity vA to that of vB, and (b) the tangential velocity
vA to that of vB?
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