93GP(a) If the horizontal acceleration produced briefly by
Chapter 4, Problem 93GP(choose chapter or problem)
() If the horizontal acceleration produced briefly by an earthquake is
, and if an object is going to “hold its place” on the ground, show that the coefficient of static friction with the ground must be at least \(\mu_{k}=a / g\). (b) The famous Loma Prieta earthquake that stopped the 1989 World Series produced ground accelerations of up to \(4.0 \mathrm{\ m} / \mathrm{s}^{2}\) in the San Francisco Bay Area. Would a chair have started to slide on a floor with coefficient of static friction 0.25?
Equation Transcription:
Text Transcription:
mu_k=a/g
4.0 m/s^2
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