A rigid body rotates about a fixed axis with a constant angular velocity. Which one of the following statements is true concerning the tangential acceleration of any point on the body? The tangential acceleration does not depend on the angular velocity. The tangential acceleration is constant, but not equal to zero m/s², in both magnitude and direction. The tangential acceleration is equal to the centripetal acceleration. O The tangential acceleration depends on the change in the centripetal acceleration. O The tangential acceleration is zero m/s².

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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.