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）︰2012/03/15 考试时限（分钟）：50分钟 是否需发放奖励金：是 试题 : 1. What is the principle of transmissibility for a force acted on a rigid body? Again what type vector of this force can be? (20%) 2. As shown, calculate the magnitude of the moment about the base point O of the 600-N force in two different ways (15%). 3. What is a couple-moment in mechanical sense? Again explain why is it a free vector? (30%) 4. Try to illustrate by plotting a force-moment system in a plane can be replaced by a single force in the same plane. (20%) 5. As shown, the masthead fitting supports the two forces in the figure. Determine the magnitude of force T which will cause no bending of the mast (zero moment) at point O (15%). --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 140.112.247.94