CE 30 Chil Engr. Fundamental Comutations-7 Page I of 1o 75-Min. Final Esam Sprin

Question

CE 30 Chil Engr. Fundamental Comutations-7 Page I of 1o 75-Min. Final Esam Spring 3 ns: In the following quiz there are twenty equally weghted o h at least 3 signifcant fiures, but not more than 6 figures. Compute a base-10 or root, or a numerical constant (x or e) in yHr aNSWEr. You using a fraction (e 2-7 can uve base-10 s 9.81 m/s or 322/. There is one correct anower per question. Pou points per problem Prob. I Determine the magnitude of the resultant of the system of forces shown when: F-194+18-32A The force vectors are in lbs The magnitude of the resultant of the system of forces is: bs Prob. 2 For the loading shown, P-30 N and Q 75 N, and the maximum resisting moment is 200 N-m at support A. Calculate the magnitude of the vertical forceF 0.5 m 1.0 m 0.5m The magnitude of the vertical force F is:

Explanation / Answer

2) Moment at A due to P = 30*1.5=45 Nm

Moment at A due to Q=75*0.5=37.5 Nm

Let the force magnitude of force be F

1.5F + 45+ 37.5=200

F=78.33 N

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