Homework 4 Problem 4.101 2 of 6 > Replace the loading system acting on the beam

Question

Homework 4 Problem 4.101 2 of 6 > Replace the loading system acting on the beam by an equivalent resultant force and couple moment at point O Suppose that Fi = 450 N . F2 = 200 N , and M = 400 N.m. (Figure 1) Part B Determine the angle between the resultant force and the r axis Express your answer using three significant figures o measured counterclockwise from the negative axis e 40.1 vious Answer Correct Part C Determine the equivalent resultant couple moment about point O Express your answer to three significant figures and include the appropriate units Enter positive value if the moment is counterclockwise and negative value if the moment is clockwise Figure 1 of 1 (Mn)o= 1 Value l Units 30° 0.2 m Previous Answers Request Answe 1.5 m 1.5 m Incorrect: Try Again: no points deducted Provide Feedback Next >

Explanation / Answer

I am answering part C because part b is answered correctly
resultant momment about O= moment due to F1+moment due to F2+M

= -F1*cos30*1.5+3.5*F2-M = -(450*cos30*1.5)+(3.5*200)-400=-284.57 Nm

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