Can someone please look at this problem, I have some questions: http://www.chegg
ID: 1851872 • Letter: C
Question
Can someone please look at this problem, I have some questions: http://www.chegg.com/homework-help/engineering-mechanics-statics-11th-edition-chapter-4-problem-98p-solution-9780132215008 In step five I am confused. Why are some of the values changing from negative to positive (and vice versa) from the matrix to the equation. For example, the matrix shows the value -2, however only +2 can be found in the equation below it. Also, -324.75 shows up in the matrix, but in the equation it shows up as both positive and negative. Its confusing the hell out of me so any clarification would be greatly appreciated! Also, Why does the final moment value end up as a negative and then change to a positive? I mean, I can guess from looking at the original that the force would cause clockwise rotation, but I would think clockwise rotation would be a positive value. That being said, the matrix shows -324.75, Which i would think would indicate, given the direction of the force and its negative value, that counterclockwise rotation would be represented as a negative value. Looking at the result of the equation, -100.5 I would assume the force is counter clockwise. But the final answer shows 100.5 and defines it as clockwise. WTFMate.Explanation / Answer
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