101004 - 12 Physics 121 Friction opposes the sliding of two...

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Physics 121 10/4/10 Prof. E. F. Redish 1 10/4/10 1 Physics 121 10/4/10 3 Physics 121 10/4/10 7 Physics 121
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Physics 121 10/4/10 Prof. E. F. Redish 2 10/4/10 8 Physics 121 10/4/10 9 Physics 121 breakaway time f k is approximately constant 10/4/10 10 Physics 121 clamp Surfaces whose friction is being tested TOP VIEW FBD for Blue Block!
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Physics 121 10/4/10 Prof. E. F. Redish 3 10/4/10 11 Physics 121 B A static AB B A B A N f f ± ± ± = ² μ max B A kinetic AB B A N f ± ± = static AB kinetic AB ± 10/4/10
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Unformatted text preview: 12 Physics 121 Friction opposes the sliding of two surfaces over each other. (It does NOT opposed motion!) 10/4/10 13 Physics 121 Start from rest Increase force until box starts moving Pull so it goes at a constant speed Graph: position velocity acceleration net force applied force friction force Physics 121 10/4/10 Prof. E. F. Redish 4 10/4/10 16 Physics 121 10/4/10 18 Physics 121 10/4/10 19 Physics 121...
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This note was uploaded on 12/28/2011 for the course PHYSICS 121 taught by Professor Shawhan during the Spring '10 term at Maryland.

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101004 - 12 Physics 121 Friction opposes the sliding of two...

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