# Moments using force and distance.

## Homework Statement

The 4-kN force F is applied at point A. Compute the
moment of F about point 0, expressing it both as a
scalar and as a vector quantity. Determine the coordinates
of the points on the x- and y-axes about which
the moment of F is zero

m=fd

## The Attempt at a Solution

i think that i need to find the distance from F to the origin that is perpendicular. since the moment is always perpendicular to the line of action.

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PhanthomJay
Homework Helper
Gold Member
Yes, I think the easiest way is to break F into its x and y components, then solve for the moment about O by algebraically summing the moments produced by these component forces. Moments can be computed this way (force times perpendicular distance), but that is not the only way. Watch plus/minus signs!

is there a simpler way to do this. i cant get my head round it. thanks

PhanthomJay