Posted by **jen** on Tuesday, October 28, 2008 at 6:41pm.

i hope this makes sense.

Say that i have x and y axis. then i have an arrow coming out similiar to how you would draw a resultant arrow in physics.

the arrow represents Force=140N

Then say that you have to find the moment about O and the origin is O.

So the first step is to find Fx and Fy.

Then you use M=Fd to solve the problem but you also have to use the right hand rule to figure out the direction for each force and distance.

Say that Fx=4i. I know to find the direction you do rXF. But when i use the right hand rule, after i put my hand in the r direction, do i curl my finger in the F direction or the Fx direction.

also i have solutions to my textbook. Sometimes they say that clockwise is positive and counterclockwise is positive. How do you decide whether each is positive or not. I thought usually, counterclockwise was positive

## Answer this Question

## Related Questions

- Physics (vectors) - Please help me with this question. I have a triangle that is...
- Physics (vectors) - I am stuck with this question.Please help. I have a triangle...
- coefficient - test using the lead coefficient to find out if y arrow oo, or y ...
- Calculus - 1.(arrow above letter a pointing to the right) and (arrow above ...
- Physics - Three arrows are shot at different angles. A red arrow is shot at ...
- Physics - An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam ...
- Physics... Please Help - An arrow is fired with a speed of 20.0 m/s at a block ...
- Physics - Problem: A hunter shoots an arrow at a deer directly away from him. ...
- Physics - ***EXTRA CREDIT*** An arrow is fired with a speed of 20.0 m/s at a ...
- physics - You have a friend who is an archer and she wants to know how fast the ...