Answered: Centripetal Acceleration The rotating…

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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Centripetal Acceleration

The rotating platform is not friction free. Friction will cause an angular acceleration that will cause the platform to slow down. How will this acceleration effect your measurements of the centripetal acceleration (or, if it has no effect, why not )?

If you are sitting one meter from the center of a merry go round which spins at 3 RPM, you have to hold on or you will fall off. Which situation will require you to hold on the hardest: continuing to spin 3 RPM, buy holding on at 2 meters from the center, or continuing to hold on at 1 meter from the center but spinning 6 RPM? (Why? What formula are you using?)

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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