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: A. into the screen B. out of the screen C. to the left D. to the right E. upwards F. downwards

Part b

In the following diagram, in which direction is the torque? Figure2

The direction of torque is: A. into the screen B. out of the screen C. to the left D. to the right E. upwards F. downwards

Solution

Go to Quiz 2