A of students conducts an experiment with an object made of two uniform disks, each of radius R, group and a thin axle. The disks are connected to each other with the axle at their centers and set on a horizontal table as shown in the perspective view above. The object has a mass M and total rotational inertia I about the axis of rotation as shown. A light string is tied loosely to the axle such that the string exerts a force without wrapping around the axle. Friction between the axle and string is negligible. The string then passes over an ideal pulley and is tied to a block of mass m=1.0kg. At time t=0 the object-block system is released from rest, and the block accelerates downward. In this case, the object rolls without slipping on the table. The coefficients of static and kinetic friction between the object and table are Us and Uk respectively.

A of students conducts an experiment with an object made of two uniform disks, each of radius R, group and a thin axle. The disks are connected to each other with the axle at their centers and set on a horizontal table as shown in the perspective view above. The object has a mass M and total rotational inertia I about the axis of rotation as shown. A light string is tied loosely to the axle such that the string exerts a force without wrapping around the axle. Friction between the axle and string is negligible. The string then passes over an ideal pulley and is tied to a block of mass m=1.0kg. At time t=0 the object-block system is released from rest, and the block accelerates downward. In this case, the object rolls without slipping on the table. The coefficients of static and kinetic friction between the object and table are Us and Uk respectively.

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 7.80P

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