# FrictionLab - Sliding Friction Sliding Objectives determine...

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Sliding Friction Sliding Friction Objectives : determine the coefficient of sliding friction for wood on desk, a shoe on a dry floor, a shoe on a wet floor, and/or other surfaces determine the relationship between friction force and surface area Equipment : force scale, friction block, shoe, various masses, water Procedure : “Wood on Desk - Wide Side” 1. Find the weight of your friction block using either the triple beam balance or your force scale. 2. Record the weight of the friction block in Data Table I. 3. Attach the force scale to the friction block and pull the scale horizontally with the desktop at a steady rate and record the average force reading in your data table under the column “Friction Force.” 4. Add some mass. Calculate this additional weight (use g = 9.8 m/s/s for each of the calculations) and record your findings in the Data Table. This total amount of weight will be known as the “Normal Force.” Pull the block as before to find the amount of friction force with this total weight.

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