R 프2 VMg A horizontal bar of length R 2.0 m and mass M 4.0 kg is allowed to pivot in a vertical plane about one of its ends under the influence of its own weight. A tension force of 25 N is applied upward on the free end. What is the magnitude of the angular acceleration of the bar?

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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.