当车胎缓慢漏气时,车胎变扁,与地面间的接触面积(受力面积)增大,在同样压力(车加人重相同)的情况下,减小压强.
故选B.
某同学在水平道路上骑自行车,当车胎发生慢漏气时,车胎对地面的压强将( ) A.变大 B.变小 C.不变 D.不好确定.
某同学在水平道路上骑自行车,当车胎发生慢漏气时,车胎对地面的压强将( )
A. 变大
B. 变小
C. 不变
D. 不好确定.
A. 变大
B. 变小
C. 不变
D. 不好确定.
物理人气:328 ℃时间:2019-10-17 07:20:32
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