Question 1: The Right Hand Rule
Recall = r x F = r F sin.
In both diagrams (parts a and b), the force vector F can be thought of as having acted on the arrowhead of moment arm r. However, F has been translated (moved) so that the two vectors are tail-to-tail. This was done in order to simplify the problem.
Part a
In the following
diagram, use the right hand rule to find the direction of torque.
Figure 1 |
The direction of torque is: |
Part b
In the following
diagram, in which direction is the torque?
Figure2 |
The direction of torque is: |