Convention is to use the right hand rule. Your right thumb points in the direction of positive torque (moment) produced the rotational associated with the curl of your fingers. Thumb pointing out of the page is positive torque due to a counter clockwise rotation.

But as already noted it’s really arbitrary. As long as you are consistent when setting the sum of the moments equal to zero, the results will be the same.

Hope this helps.

Convention is to use the right hand rule. Your right thumb points in the direction of the torque (moment) vector produced by the rotation associated with the curl of your fingers. Thumb pointing out of the page is positive torque due to a counter clockwise rotation.

But as already noted it’s really arbitrary. As long as you are consistent when setting the sum of the moments equal to zero, the results will be the same.

Hope this helps.

Convention is to use the right hand rule. Your right thumb points in the direction of positive torque (moment) produced by the curl of your fingers. Thumb pointing out of the page is positive torque due to a counter clockwise rotation.

But as already noted it’s really arbitrary as long as you are consistent when setting the sum of the moments equal to zero. The results will be the same.

Hope this helps.

Convention is to use the right hand rule. Your right thumb points in the direction of positive torque (moment) produced the rotational associated with the curl of your fingers. Thumb pointing out of the page is positive torque due to a counter clockwise rotation.

But as already noted it’s really arbitrary. As long as you are consistent when setting the sum of the moments equal to zero, the results will be the same.

Hope this helps.