问题标题：
【基础物理计算问题（英文好者进）oneofthefastestrecordedpitchesinmajor-leaguebaseball,thronbyJoelZumayain2006,wasclockedat101.0mi/h.ifapitchwerethrownhorizontallywiththisvelocity,howfarwouldtheballfallvertica】
问题描述：
基础物理计算问题（英文好者进）
oneofthefastestrecordedpitchesinmajor-leaguebaseball,thronbyJoelZumaya
in2006,wasclockedat101.0mi/h.ifapitchwerethrownhorizontallywiththis
velocity,howfarwouldtheballfallverticallybythetimeitreachedhomeplate?
罗丁回答：
1mile=1609.344meter
V=101.0mi/h=101.0mi/hx1609.344m/3600s=45.15m/s
t=18.39mx45.15m/s=0.4s
d=1/2x9.8m/s2x(0.4x0.4)s2=0.81m
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