Answered: A phonograph record accelerates from…

A phonograph record accelerates from rest to 32.0 rpm in 4.53 s. (a) What is its angular acceleration in rad/s?? (b) How many revolutions does it go through in the process?

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 94AP: A top has moment of inertia 3.2104kgm2 and radius 4.0 cm from the center of mass to the pivot point....

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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 phonograph record accelerates from rest to 32.0 rpm in 4.53 s.
(a)
What is its angular acceleration in rad/s??
ES
(a)
How many revolutions does it go through in the process?
TES

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