8. A machine part rotates at an angular speed of 0.060 rad/s; its speed is then increased to 2.2 rad/s at an angular acceleration of 0.70 rad/s2. (a) Find the angle through which the part rotates before reaching this final speed. (b) If both the initial and final angu- lar speeds are doubled and the angular acceleration remains the same, by what factor is the angular dis- placement changed? Why?

8. A machine part rotates at an angular speed of 0.060 rad/s; its speed is then increased to 2.2 rad/s at an angular acceleration of 0.70 rad/s2. (a) Find the angle through which the part rotates before reaching this final speed. (b) If both the initial and final angu- lar speeds are doubled and the angular acceleration remains the same, by what factor is the angular dis- placement changed? Why?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

8. A machine part rotates at an angular speed of
0.060 rad/s; its speed is then increased to 2.2 rad/s
at an angular acceleration of 0.70 rad/s2. (a) Find the
angle through which the part rotates before reaching
this final speed. (b) If both the initial and final angu-
lar speeds are doubled and the angular acceleration
remains the same, by what factor is the angular dis-
placement changed? Why?

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