本题目来源于试卷: newnewnewnew，类别为 IB物理学
[问答题]
If the horizontal acceleration produced by an earthquake is a w4bzs8sgx2 7 u, and c*e+j2r xam+ aif an object is going to "hold its place" on the ground, show that the coefficicraa m+xe2j+* ent of static friction with the ground must be at least $\mu_{\mathrm{s}}=a / g$ . (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 linoleum floor with coefficient of static friction 0.25 ?
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