Consider the following arrangement of masses: Mass 1 is connected to mass 2 by a very light string and moves over a frictionless pulley so that both masses move with the same speed and move the same distances (?2 to the right a distance ? and ?1 down a distance ?). Assume ?1 = 15 ??, ?2 = 15 ??, and the coefficient of kinetic friction be

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.72P

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Question

Consider the following arrangement of masses: Mass 1 is connected to mass 2 by a very light string and moves over a frictionless pulley so that both masses move with the same speed and move the same distances (?2 to the right a distance ? and ?1 down a distance ?).
Assume ?1 = 15 ??, ?2 = 15 ??, and the coefficient of kinetic friction between ?2 and the table is ?? = 0.73. Let the masses start with an initial speed of 1.00 m/s. What is their speed after moving 1.00 cm (? = 0.0100 ?)?

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