Posted by **Mel** on Wednesday, December 10, 2008 at 8:58pm.

A uniform rod of length 176 cm is bent at its midpoint into a right angle. Then the bent rod is placed along the negative x and positive y axes, with the "bend point" located at the origin. What are the x and y coordinates of the center of mass of this object?

my thoughts were that the coordinates were just (.44, .44) but it's incorrect. can someone help?

- Physics -
**bobpursley**, Wednesday, December 10, 2008 at 9:02pm
the cm along the x axis is 1/2 (-176/2) or -.44 m, and along the y axis .44m

You missed the sign.

- Physics -
**Mel**, Wednesday, December 10, 2008 at 9:06pm
Why is it negative?

I just plugged them into the computer, and it isn't accepting that answer. (-.44m, .44m), that is.

- Physics -
**drwls**, Wednesday, December 10, 2008 at 9:15pm
Perhaps they want the answer in cm.

The x coordinate of the C.M. is negative because half of the bent rod is in the -x region and the other half is along the x=0 axis.

- Physics -
**Mel**, Wednesday, December 10, 2008 at 9:34pm
I definitely missed that. Thanks.

I got an answer of -22 cm on x, and 22cm on y, put it into the computer, and it's right.

## Answer this Question

## Related Questions

- physics - A thin, uniform rod is hinged at its midpoint. To begin with, one-half...
- Physics - A thin, uniform rod is hinged at its midpoint. To begin with, one half...
- College Physics - A uniform rod of mass M = 437.0 g and length L = 37.1 cm ...
- physics - A uniformly charged insulating rod of length 19.0 cm is bent into the ...
- physics - A uniformly charged insulating rod of length 19.0 cm is bent into the ...
- physics - A uniformly charged insulating rod of length 13.0 cm is bent into the ...
- physics - A uniformly charged insulating rod of length 14 cm is bent into the ...
- physics - A uniform thin rod of length 0.55 m and mass 5.5 kg can rotate in a ...
- AP Physics - A uniform thin rod of length 0.3m and mass 3.5kg can rotate in a ...
- physics - A charge of 21 nC is uniformly distributed along a straight rod of ...

More Related Questions