A student wants to determine the coefficient of static friction between a long, flat wood board and a small wood block. (a) Describe an experiment for determining the coefficient of static friction between the wood board and the wood block. Assume equipment usually found in a school physics laboratory is available. i. Draw a diagram of the experimental setup of the board and block. In your diagram, indicate each quantity that would be measured and draw or state what equipment would be used to measure each quantity. ii. Describe the overall procedure to be used, including any steps necessary to reduce experimental uncertainty. Give enough detail so that another student could replicate the experiment. (b) Derive an equation for the coefficient of static friction in terms of quantities measured in the procedure from part (a). A physics class consisting of six lab groups wants to test the hypothesis that the coefficient of static friction between the board and the block equals the coefficient of kinetic friction between the board and the block. Each group determines the coefficients of kinetic and static friction between the board and the block. The groups' results are shown below, with the class averages indicated in the bottom row. Lab Coefficient Coefficient Group Number of Kinetic of Static Friction Friction 1 0.45 0.54 0.46 0.52 0.42 0.56 4 0.43 0.55 2.
A student wants to determine the coefficient of static friction between a long, flat wood board and a small wood block. (a) Describe an experiment for determining the coefficient of static friction between the wood board and the wood block. Assume equipment usually found in a school physics laboratory is available. i. Draw a diagram of the experimental setup of the board and block. In your diagram, indicate each quantity that would be measured and draw or state what equipment would be used to measure each quantity. ii. Describe the overall procedure to be used, including any steps necessary to reduce experimental uncertainty. Give enough detail so that another student could replicate the experiment. (b) Derive an equation for the coefficient of static friction in terms of quantities measured in the procedure from part (a). A physics class consisting of six lab groups wants to test the hypothesis that the coefficient of static friction between the board and the block equals the coefficient of kinetic friction between the board and the block. Each group determines the coefficients of kinetic and static friction between the board and the block. The groups' results are shown below, with the class averages indicated in the bottom row. Lab Coefficient Coefficient Group Number of Kinetic of Static Friction Friction 1 0.45 0.54 0.46 0.52 0.42 0.56 4 0.43 0.55 2.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter6: Applications Of Newton’s Laws Of Motion
Section: Chapter Questions
Problem 40PQ
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