Which of the following diagrams shows the greatest magnitude net torque with a zero net force? All the rods,of length 2r,rotate about an axis that is perpendicular to the rod and fixed in the center of the rod.All the forces are of magnitude F or 2F and all distances from the axis are r or r/2.

Question

Quizplus · Accepted Answer

In diagram B, there are two forces of magnitude 2F and they are both at a distance of r/2 from the axis. This creates a torque of 2Fr, which is greater than any of the other diagrams. Additionally, the two forces are in opposite directions and therefore cancel out, resulting in a net force of zero.

Which of the Following Diagrams Shows the Greatest Magnitude Net