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Mechanical Aptitude Test
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Doug Miller
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Posts: 6,375
Mechanical Aptitude Test
In article ,
(Robert Bonomi) wrote:
In article ,
Doug Miller wrote:
In article , "HDRDTD"
wrote:
This one triped up every engineer here that has taken the test so far.
I was thinking along the same lines at first, noting that if you measure
from the center of each box to the fulcrum, the the distance ratio appears
to be 5:1
Not "appears to be". Is.
HUH???
I see two triangles point down.
center of mass _is_ the same as the point of contact with the lever.
The lever is already marked in uniform segments.
The one on the left is _two_ segments out from the fulcrum
The one on the right is _six_ segments out from the fulcrum.
How in name of {something} do you come up with anything other than 3:1??
Simple: they changed the picture between then and now, presumably in response
to numerous complaints that their answer was wrong. At the time HDRDTD and I
posted, the picture looked something like this (view in a fixed-space font):
___ ___
| | | |
|___| |___|
-- -- -- -- -- -- -- --
/\
/__\
As illustrated, the centers of mass are at 1 unit, and 5 units, distant from
the fulcrum.
--
Regards,
Doug Miller (alphageek at milmac dot com)
It's time to throw all their damned tea in the harbor again.
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