# right hand rule

posted by .

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

## Similar Questions

1. ### coefficient

test using the lead coefficient to find out if y arrow oo, or y arrow-oo as x arrow -oo y=-5x^3+4x^2+6x-7 n is odd -5x^3 an<0 -5x^3 y arrow -oo as x arrow oo Is this right or do I need to go back and try again?
2. ### Physics

Three arrows are shot at different angles. A red arrow is shot at 30degrees, a blue arrow is shot at 45degrees, and a yellow arrow is shot at 60degrees. A) Which arrow goes the farthest?
3. ### Physics

Problem: A hunter shoots an arrow at a deer directly away from him. When the arrow leaves the bow, the deer is at a distance of 38 m. When the arrow strikes, the deer is at a distance of 51.00 m. The speed of the arrow is 65.00 m/s. …
4. ### Physics

An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration …
5. ### Physics

***EXTRA CREDIT*** An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the …

An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration …
7. ### Physics (vectors)

Please help me with this question. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. How do you find the resultant, …
8. ### Physics (vectors)

I am stuck with this question.Please help. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. If the resultant is …
9. ### Physics

An arrow, starting from rest, leaves the bow with a speed of 28.8 m/s. If the average force exerted on the arrow by the bow was increased 2 times and the arrow was accelerated over the same distance, then with what speed would the …
10. ### physics vectors

Consider the two vectors A with arrow = 3 i − j and B with arrow = − i − 6 j. Calculate the directions of A with arrow + B with arrow and A with arrow − B with arrow. A with arrow + B with arrow ° (counterclockwise …

More Similar Questions