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.
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
got a physics homework problem, who can help me out? 
- 10/04/2011 06:33:44 AM
2233 Views
- 10/04/2011 06:33:44 AM
2233 Views
my solution -- which is apparently wrong
- 10/04/2011 06:36:20 AM
1818 Views
The only thing I see which might affect your results...
- 10/04/2011 10:58:00 AM
1485 Views
I also got 12,174 N*m. *NM*
- 10/04/2011 02:13:24 PM
584 Views
"Your answer either contains an incorrect additive numerical constant or is missing one." *NM*
- 10/04/2011 11:44:49 PM
25040 Views
Interesting. Did you copy/paste the problem statement for your post? *NM*
- 11/04/2011 01:49:15 AM
834 Views
here's the copy/paste from the site
- 11/04/2011 02:22:27 AM
1483 Views
You summed it up well enough. I'm out of ideas. Sorry. If you find out the answer....
- 11/04/2011 02:50:50 AM
911 Views
*NM*
If this thing works at all like Webassign (an online homework thingy I used to do)...
- 10/04/2011 08:28:03 PM
1044 Views