A block of mass m is placed on an inclined plane which has an adjustable angle with the horizontal. The angle is increased slowly from zero until the block just starts to slide. This angle is called the critical angle, Os. a. Express the coefficient of friction in terms of Og. For angles smaller than 6, the block will not start to move. However, for angles greater than or equal to 0s, once the block does start it is observed that it accelerates down the plane. Once the block starts to move, the angle can be reduced to a second critical value, Ok, for which the acceleration is zero. b. What do you conclude about the friction force?

A block of mass m is placed on an inclined plane which has an adjustable angle with the horizontal. The angle is increased slowly from zero until the block just starts to slide. This angle is called the critical angle, Os. a. Express the coefficient of friction in terms of Og. For angles smaller than 6, the block will not start to move. However, for angles greater than or equal to 0s, once the block does start it is observed that it accelerates down the plane. Once the block starts to move, the angle can be reduced to a second critical value, Ok, for which the acceleration is zero. b. What do you conclude about the friction force?

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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