A physics textbook is placed on an inclined slope with an adjustable angle a. Thecoefficients of friction between the book and the slope are us = 0.5 and uk = 0.35respectively.1ma (i) Initially the book is not moving. Copy the diagram and draw all the forces acting onthe book. Show mathematical expressions for the size (magnitude) of each force. Ifwe slowly increase the angle a, at what angle does the book start sliding?(ii) Use the Work-Energy theorem to find a formula (expression) for the speed v ofthe book when it reaches the bottom, in terms of the angle a.(iii) If we place a ball of the same mass and material as that of book at the top, whatis the kinetic energy of the ball in terms of its mass and speed when it is rolling downthe ramp? Does friction (either static or kinetic) do any work on the rolling ball?Explain your answer.(Hint: the ball is a thin spherical shell)(iv) We release the book and ball at the same time, and record which reaches thebottom first. Which one wins? Is this true for all angles a?(v) What happens to the objects as a becomes nearly 90°?

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Description: A physics textbook is placed on an inclined slope with an adjustable angle a. Thecoefficients of friction between the book and the slope are us = 0.5 and uk = 0.35respectively.1ma (i) Initially the book is not moving. Copy the diagram and draw all t

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A physics textbook is placed on an inclined slope with an adjustable angle a. The coefficients of friction between the book and the slope are us = 0.5 and uk = 0.35 %3D respectively. 1m

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.13CYU: Check Your Understanding Find the angle between forces F1and F3in Example 2.16.

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