let us say that we have a circle shaped ring (like those rings from basketball) with a radius (R) and with its own mass (M). let us say that there is a string that is tied to this ring and that the string would be tied to a fixed ceiling. the ring is then released from its rest and drops down. FIND: a) da tension in the string b) lets find the Magn of of the acceleration of the CoM c) also pls find the speed of the CoM after the ring fell thru a distance of L

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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.