(adsbygoogle = window.adsbygoogle || []).push({}); Having trouble with this "Moments about the coordinate axes" problem!

When a force F is applied to the handle of the valve shown, its moments about the x and z axes are, respectively, M_x= -77 lb ft and M_z= -81 lb ft. For d=27 in., determine the moment M_y of F about the y axis.

[PLAIN]http://img411.imageshack.us/img411/8366/092310015800.jpg [Broken]

I figure I'm supposed to use the formulas:

M_x= yF_z - zF_y

M_y= zF_x - xF_z

M_z= xF_y - yF_x

but I'm having trouble on finding a component of the force.

Also, are my x,y,z's correct??

I got, x=-4, y=11, z=-27

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Having trouble with this Moments about the coordinate axes problem!

**Physics Forums | Science Articles, Homework Help, Discussion**