5. Calculate the centrifugal acceleration (xg, i.e times the force of gravity) experienced by a particle which is located 12.5 cm from the axis of rotation of a centrifuge rotor which is rotating at 450,000 rpm (revolutions per minute). To work this problem, see the handout entitled, "Centrifugation and Cell Fractionation" that was passed out in class.
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.
Given data-
A particle which is located a distance from the Axis of rotation r=12.5 cm
Rotor is rotating at 450,000 rpm.
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