A centrifuge slows down or speeds up from 4,988 rpm to 9,644 rpm in 14 seconds. Assuming constant angular acceleration, determine the number of revolutions it goes through in this time. Express your answers using zero decimal places.

A centrifuge slows down or speeds up from 4,988 rpm to 9,644 rpm in 14 seconds. Assuming constant angular acceleration, determine the number of revolutions it goes through in this time. Express your answers using zero decimal places.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 9CQ: Explain why centripetal acceleration changes the direction of velocity in circular motion but not...

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Concept explainers

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.

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A centrifuge slows down or speeds up from 4,988 rpm to 9,644 rpm in 14 seconds. Assuming constant angular acceleration, determine the number of
revolutions it goes through in this time. Express your answers using zero decimal places.

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