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my solution -- which is apparently wrong moondog Send a noteboard - 10/04/2011 06:36:20 AM
Tb = Torque of beam
Tp = Torque of person
T = total torque

T = Tb + Tp

Tb = (580kg) * (9.8m/s^2) * (1.7m) = 9662.8Nm
Tp = (75kg) * (9.8m/s^2) * (3.40m) = 2499Nm

T = 9662.8 + 2499 = 12161.8Nm



edit: i know this is wrong because it is from an online homework sheet which automatically tells you whether or not your answer is correct. even rounding to 3 significant figures with the above answer was not taken as correct.
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This message last edited by moondog on 10/04/2011 at 06:51:09 AM
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got a physics homework problem, who can help me out? moondog - 10/04/2011 06:33:44 AM 2314 Views
my solution -- which is apparently wrong moondog - 10/04/2011 06:36:20 AM 1892 Views
The only thing I see which might affect your results... jh - 10/04/2011 10:58:00 AM 1568 Views
I also got 12,174 N*m. *NM* heartbreak - 10/04/2011 02:13:24 PM 615 Views
"Your answer either contains an incorrect additive numerical constant or is missing one." *NM* moondog - 10/04/2011 11:44:49 PM 25085 Views
Interesting. Did you copy/paste the problem statement for your post? *NM* heartbreak - 11/04/2011 01:49:15 AM 867 Views
here's the copy/paste from the site moondog - 11/04/2011 02:22:27 AM 1564 Views
You summed it up well enough. I'm out of ideas. Sorry. If you find out the answer.... heartbreak - 11/04/2011 02:50:50 AM 1000 Views
i had it right, it was looking for scientific notation *NM* moondog - 11/04/2011 03:00:44 AM 1059 Views
Bloody hell... *NM* heartbreak - 11/04/2011 12:53:50 PM 642 Views
You might also check... heartbreak - 10/04/2011 02:15:53 PM 1043 Views
N*m *NM* moondog - 10/04/2011 03:08:39 PM 496 Views
If this thing works at all like Webassign (an online homework thingy I used to do)... Aemon - 10/04/2011 08:28:03 PM 1121 Views
it's not asking for specific sig figs moondog - 10/04/2011 09:00:23 PM 1010 Views
Are you over thinking it? L0gan - 13/04/2011 07:32:26 PM 1251 Views
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