Try This

Topic: Try This (Read 2526 times) previous topic - next topic

Reply #30 – October 17, 2007, 06:57:05 PM

Yeah, that's the problem, the spaces are "half distances".

...or not?

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Reply #31 – October 17, 2007, 07:33:54 PM

Quote from: stuntmannick;183029

No, the correct answer is 100

300*1=X*3
X=100

edit: i counted each dash as half a unit of measure

they could have illustrated the problem better

If you assume the boxes are point masses and have a CG that is on the exact outward edge of the box, then you end up with 2:6 ratio. That would be a silly assumption.

A far more reasonable assumption is that the boxes are distributed masses and their CGs lie in the center. You end up with a 1:5 ratio.

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Reply #32 – October 17, 2007, 07:39:33 PM

Quote from: JeremyB;183035

That would be a silly assumption.

Not when 60 isn't an option.

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Reply #33 – October 17, 2007, 08:20:03 PM

72 here and I had some pot before hand. next time no pot. lol
igiveup

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Reply #34 – October 17, 2007, 08:24:02 PM

Quote from: JeremyB;183035

If you assume the boxes are point masses and have a CG that is on the exact outward edge of the box, then you end up with 2:6 ratio. That would be a silly assumption.

A far more reasonable assumption is that the boxes are distributed masses and their CGs lie in the center. You end up with a 1:5 ratio.

You are 100% correct. That is what I thought too. When I saw that there was no option, I assumed that they put the boxes on wrong and they actually hang halfway off the ends

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Reply #35 – October 17, 2007, 08:28:29 PM

There were 5 questions I went through too fast and did not see a way to go back and change my answer...

*edit*

Took it again, slower this time...

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Reply #36 – October 18, 2007, 10:47:25 AM

Quote from: stuntmannick;183036

Not when 60 isn't an option.

Bottom line is the question is incorrect as written (along with a few others).