4 .lf a disk 3 ft in diameter starts from rest with an angular acceleration of 4.4 rad/sec2, (a)what is its angular speed at the end of 10 sec., (b) find the tangential speed of a point on the circumference.

4 .lf a disk 3 ft in diameter starts from rest with an angular acceleration of 4.4 rad/sec2, (a)what is its angular speed at the end of 10 sec., (b) find the tangential speed of a point on the circumference.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 85AP: A propeller blade at rest starts to rotate from t=0 to t=5.0s with a tangential acceleration of the...

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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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4 .lf a disk 3 ft in diameter starts from
rest with an angular acceleration of
4.4 rad/sec2, (a)what is its angular
speed at the end of 10 sec., (b) find
the tangential speed of a point on the
circumference.

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