Homework Help: Physics

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 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 ...
AP Physics - A uniform thin rod of length 0.3m and mass 3.5kg can rotate in a ...
physics - A thin non-uniform rod of length L=2.00 m and mass M=9.00 kg is free ...
Physic - Can some one help me with this question. A uniform 119.0 cm long, 78.0 ...
Physics - If a rod is moving at a velocity equal to 1/2 the speed of light ...
physics - If a rod is moving at a velocity equal to 1/2 the speed of light ...
physics - A uniform rod of mass M = 0.245kg and length L = 0.49m stands ...
Physics - a uniform rod of 3 kg and length 1 m is suspended from a fixed point ...

For Further Reading

First Name:
School Subject:
Answer: