The central ideas in this problem are reviewed in Mutiple-Concept Example 9. One block rests upon a horizontal surface. A second identical block rests upon the first one. The coefficient of static friction between the blocks is the same as the coefficient of static friction between the lower block and the horizontal surface. A horizontal force is applied to the upper block, and its magnitude is slowly increased. When the force reaches 54.0 N, the upper block just begins to slide. The force is then removed from the upper block, and the blocks are returned to their original configuration. What is the magnitude of the horizontal force that should be applied to the lower block, so that it just begins to slide out from under the upper block?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter5: More Applications Of Newton’s Laws
Section: Chapter Questions
Problem 48P: Why is the following situation impossible? A 1.30-kg toaster is not plugged in. The coefficient of...
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The central ideas in this problem are reviewed in Mutiple-Concept Example 9. One block rests upon a horizontal surface. A second
identical block rests upon the first one. The coefficient of static friction between the blocks is the same as the coefficient of static
friction between the lower block and the horizontal surface. A horizontal force is applied to the upper block, and its magnitude is
slowly increased. When the force reaches 54.0 N, the upper block just begins to slide. The force is then removed from the upper block,
and the blocks are returned to their original configuration. What is the magnitude of the horizontal force that should be applied to the
lower block, so that it just begins to slide out from under the upper block?
Number
i
Units
Transcribed Image Text:The central ideas in this problem are reviewed in Mutiple-Concept Example 9. One block rests upon a horizontal surface. A second identical block rests upon the first one. The coefficient of static friction between the blocks is the same as the coefficient of static friction between the lower block and the horizontal surface. A horizontal force is applied to the upper block, and its magnitude is slowly increased. When the force reaches 54.0 N, the upper block just begins to slide. The force is then removed from the upper block, and the blocks are returned to their original configuration. What is the magnitude of the horizontal force that should be applied to the lower block, so that it just begins to slide out from under the upper block? Number i Units
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