作者jesonk (东区)
看板NTU-Exam
标题[试题] 100-2 陈国在 静力学 第二次小考
时间Wed Apr 18 18:48:49 2012
课程名称︰静力学
课程性质︰必修
课程教师︰陈国在
开课学院：工学院
开课系所︰工科海洋系
考试日期（年月日）︰2012/04/12
考试时限（分钟）：50分钟
是否需发放奖励金：是
试题 :
1. Try to give statement on the Varignon’s Theorem for a 3-D concurrent
forces system (20%)
2. For a 3-D force in 3-D Cartesian coordinate frames system, can you write
two commonly used methods to define the direction of this force (25%).
3. A tension of magnitude 10kN is applied to the cable attached to the top A
of the right mast and secured to the ground at B. determine the moment of
about z-axis passing through the base O (25%)
4. What is a wrench ? Try to use plotting to illustrate a 3-D force-moment
system can be replaced by a wrench (30%)
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