Problem 3: At its lowest setting a centrifuge rotates with an angular speed of w = 250 rad/s. When it is switched to the next higher setting it t 5.5 s to uniformly accelerate to its final angular speed w2 = 650 rad/s. Part (a) Calculate the angular acceleration of the centrifuge aj in rad/s? over the time interval t. Part (b) Calculate the total angular displacement (in radians) of the centrifuge, A0, as it accelerates from the initial to the final speed. A0 = sin() cos() tan() 7 8. 9 HOME cotan() asin() acos() E A A 5

Problem 3: At its lowest setting a centrifuge rotates with an angular speed of w = 250 rad/s. When it is switched to the next higher setting it t 5.5 s to uniformly accelerate to its final angular speed w2 = 650 rad/s. Part (a) Calculate the angular acceleration of the centrifuge aj in rad/s? over the time interval t. Part (b) Calculate the total angular displacement (in radians) of the centrifuge, A0, as it accelerates from the initial to the final speed. A0 = sin() cos() tan() 7 8. 9 HOME cotan() asin() acos() E A A 5

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 41P: A wheel 1.0 m in diameter rotates with an angular acceleration of 4.0rad/s2 . (a) If the wheel’s...

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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.

Question

Please answer all the parts

Problem 3: At its lowest setting a centrifuge rotates with an angular speed of w, = 250 rad/s. When it is switched to the next higher setting it takes t=
5.5 s to uniformly accelerate to its final angular speed w2 = 650 rad/s.
Part (a) Calculate the angular acceleration of the centrifuge aj in rad/s? over the time interval t.
Part (b) Calculate the total angular displacement (in radians) of the centrifuge, A0, as it accelerates from the initial to the final speed.
AO =
sin()
cos()
tan()
7
8.
9
HOME
cotan()
asin()
acos()
EAA
4
5

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