Quiz 5 1 3 01 determine the length l in order to keep the...

Quiz: 5-1-3-01 Determine the length L in order to keep the thin uniform slender rods in the position shown. 105mm 125mm 130mm 45° Answer(s): PART LENGTH X XL Σ Centroid must be at point A, solve using quadratic formula.

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Transcript

00:01 We'll be looking at virtual work out for this particular problem.

00:03 We want to determine the length l.

00:09 Okay? now this is l.

00:14 This is l.

00:15 And we are given this length.

00:27 8 inch.

00:31 We also here.

00:37 We 8 the inch.

00:39 All right.

00:41 And this is a 2 inch.

00:50 This height.

00:52 There is 2 inch.

00:56 Okay.

00:57 All right, at the solve this problem, we will take, we will sum the moment about the y axis and apply the relation for centroid.

01:20 Okay, so if we do that, you have, that is the relation is this, okay? central is summation of, okay, on the yaxics, the weight.

01:42 Where the weights all right now we'll just apply these uh from a table and put the segments there to a segment we have for segment one we just take the length that eight inch plus eight inch and which is for the weights we are going to have converting the five ib bath feet to i b inch we are going to have it to be okay and possibly that length you're going to give 5 times 16 okay about 12 so what we have here now is i b per inch it's now i b per inch okay then we also consider this one the relation okay which is two we'll consider okay these times the weights if we give us two times 5 into 16 over 12, which is equal to 13 .33...

Question

Quiz: 5-1-3-01 Determine the length L in order to keep the thin uniform slender rods in the position shown. 105mm 125mm 130mm 45° Answer(s): PART LENGTH X XL Σ Centroid must be at point A, solve using quadratic formula.

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