The angular speed of a rotor in a centrifuge increases from 429 to 1350 rad/s in a time of 6.77 s. (a) Obtain the angle through which the rotor turns. (b) What is the magnitude of the angular acceleration? (a) Number i Units (b) Number i eTextbook and Media Hint Save for Later Units Attempts: 0 of 3 used Submit Answer

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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.