试题与答案

在图示系统中,绳DE能承受的最大拉力为10kN,杆重不计。则力P的最大值为:() A

题型:单项选择题

题目:

在图示系统中,绳DE能承受的最大拉力为10kN,杆重不计。则力P的最大值为:()

A.5kN

B.10kN

C.15kN

D.20kN

答案:

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