Part a | |
Figure 1 Diagram for Question 1, first problem |
In the first problem, you would point your fingers in the direction of r (left-ward), and 'curl' them upwards (into the direction of F). Your thumb should point into the screen. (Be sure you are using your right hand.) |
Part b | |
Figure 2 Diagram from Question 1, second problem |
In the second problem, r points to the right, so point your fingers to the right. Now 'curl' them upwards, in the direction of F. Your thumb should point out of the screen. |