Lab 4 – Friction Explain the shape of this graph in terms of the coefficients of static friction and kinetic friction.
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At the beginning of the graph, the friction force reaches its maximum value, which is the static friction force (f_s max). This is the maximum force required to overcome the interlocking between the surfaces. ** Show more…
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draw a graph explaining how static coefficient of friction is greater than the kinetic friction.
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Refer to the following graph. What is the coefficient of static friction μs? What is the coefficient of kinetic friction μk? μs = 0.4911 μk = 0.2579 Static and Kinetic Friction vs Normal Force 400 350 y = 0.4911x + 7.2857 300 250 200 150 100 y = 0.2579x - 1.8571 50 0 100 200 300 400 500 600 700 800 Normal Force (N) Series1 Series2 Linear (Series1) Linear (Series2)
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In a laboratory experiment on friction, a $135-\mathrm{N}$ block resting on a rough horizontal table is pulled by a horizontal wire. The pull gradually increases until the block begins to move and continues to increase thereafter. Figure 5.52 shows a graph of the friction force figure can't copy on this block as a function of the pull. (a) Identify the regions of the graph where static and kinetic friction occur. (b) Find the coefficients of static and kinetic friction between the block and the table. (c) Why does the graph slant upward in the first part but then level out? (d) What would the graph look like if a $135-N$ brick were placed on the box, and what would be the coefficients of friction be in that case?
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