A block is sliding with a speed of 4.50 m/s on a smooth horizontal surface when, at point P, it encounters a rough section. On the rough section, the coefficient of friction is not constant, but starts at 0.100 at point P and increases "linearly" with distance past point P, reaching a value of 0.600 at 12.5m past point P. (a) Use the Work-Energy theorem to find how far this box slides before stopping. (b) What is the coefficient of friction at the stopping point? (o) How far would the box have slid if the friction coefficient did not increase, but instead had a

A block is sliding with a speed of 4.50 m/s on a smooth horizontal surface when, at point P, it encounters a rough section. On the rough section, the coefficient of friction is not constant, but starts at 0.100 at point P and increases "linearly" with distance past point P, reaching a value of 0.600 at 12.5m past point P. (a) Use the Work-Energy theorem to find how far this box slides before stopping. (b) What is the coefficient of friction at the stopping point? (o) How far would the box have slid if the friction coefficient did not increase, but instead had a

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Description: A block is sliding with a speed of 4.50 m/s on a smooth horizontal surface when, at point P, itencounters a rough section. On the rough section, the coefficient of friction is not constant, but starts at0.100 at point P and increases "linearly" with

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 60P: A 2.0-kg block starts with a speed of 10 m/s at the bottom of a plane inclined at 37 to the...

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Question

A block is sliding with a speed of 4.50 m/s on a smooth horizontal surface when, at point P, it
encounters a rough section. On the rough section, the coefficient of friction is not constant, but starts at
0.100 at point P and increases "linearly" with distance past point P, reaching a value of 0.600 at 12.5m
past point P.
(a) Use the Work-Energy theorem to find how far this box slides before stopping.
(b) What is the coefficient of friction at the stopping point?
(c) How far would the box have slid if the friction coefficient did not increase, but instead had a
GOnstant value of 0.100?

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