本题目来源于试卷: gc physics textbook chapter 4 problems，类别为 通用国际物理
[问答题]
If the horizontal acceleration producfqc :i*+b;ooh ed by an eaei)xwmn(7 tv pd 6sn()rthquake is a , and if an object is going to "hold its place" on the ground, show that the coefficient of i)6(tnm) vd senw(7pxstatic 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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