Coefficient of Static Friction Problem

AI Thread Summary
The problem involves calculating the coefficient of kinetic friction (µk) for a baseball player sliding into second base with a mass of 73 kg and experiencing a frictional force of 460 N. The normal force (Fn) is determined to be 715.4 N, calculated using the player's weight (mass times gravity). By applying the formula for kinetic friction, the equation 460 N = µk * 715.4 N is set up. Solving this yields a coefficient of kinetic friction of 0.64. This solution clarifies the relationship between frictional force and normal force in the context of the problem.
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[SOLVED] Coefficient of Static Friction Problem

Homework Statement


A baseball player with mass m = 73 kg, sliding into second base, is retarded by a frictional force of magnitude 460 N. What is the coefficient of kinetic friction µk between the player and the ground?



Homework Equations


force of kinetic friction
f(k)=\mu(k) N



The Attempt at a Solution


This is a homework question given by our teacher during finals week, however he failed to go over this subject this semester and I do not have any references in my notes. The book I am using (College Pysics, 2nd ed., Giambattista) goes over this subject but is very unclear on how to solve this type of problem. Any help will be appreciated, thanks!
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Frictional force = coefficient of friction * normal force
Fn = mg = 73 * 9.8 = 715.4 N
Ff = 460 N
460 N = uk * 715.4 N

uk = .64
 

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