Posted by HELP!!!! on Friday, March 25, 2011 at 7:21pm.
A force,
F = (2x + 5y) N,
is applied to an object at a point whose position vector with respect to the pivot point is
r = (2x + 4y + 5z) m.
Calculate the torque created by the force about that pivot point.

physics  drwls, Saturday, March 26, 2011 at 12:03am
Torque is the F x r vector cross product.
Do your x, y and z represent unit vectors?
It is conventiuonal to use i, j and k for unut vectors along x, y and z orthogonal axes.
I am confused by your notation.

physics  Anonymous, Saturday, March 26, 2011 at 10:21am
yes x,y, z is unit vectors.
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