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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