Answered: One straightforward way to measure the…

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

One straightforward way to measure the coefficients of friction between a box and a wooden surface is illustrated in (Figure 1). The sheet of wood can be raised by pivoting it about one edge. It is first raised to an angle θ1 (which is measured) for which the box just begins to slide downward. The sheet is then immediately lowered to an angle θ2 (which is also measured) for which the box slides with constant speed down the sheet.

Part A)

Apply Newton’s second law to the box to find the coefficient of static friction between it and the wooden sheet.

Express your answer in terms of some or all of the variables θ1 and θ2.

Part B)

Apply Newton’s second law to the box to find the coefficient of kinetic friction between it and the wooden sheet.

Express your answer in terms of some or all of the variables θ1 and θ2.