Statics: Exam1 Review Problem 5, 3D rXF Moment Example

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[audreypohl]

You are amazing! Thank you for explaining what r is. I never got it and now that I do I understand everything. Thank you a bazillion Dr. Jeff Hanson!

[TripleA-twso]

57*-.257= -14.65i not -16.65i for clarifications

[georgesadler]

DR. Hanson, thank you for another amazing lecture in Statics. These problems are lengthy but they are worth solving.

[colind]

I think the answer is incorrect due to the I hat component of the force vector. (-24 / 93.49) x 57 = -14.6 not -16.65

[mrtylmz]

I think the coordinate of point D is wrong. Is that be D(36, -8, 90)? D's j component must be the same as the E's.

[darwisyhhaiqal]

so you mean we can find r from these 2 points? rAD and rAE?

[A.Hisham]

mz equal to +834.093 in.pound, not like you put it. :