Rank Magnitude of Torque for Forces A-F on Wrench

[makeAwish]

Homework Statement

The wrench in the figure has six forces of equal magnitude acting on it. Rank these forces (A through F) on the basis of the magnitude of the torque they apply to the wrench, measured about an axis centered on the bolt. Rank from largest to smallest.


The attempt at a solution

I've tried from largest: D, (B, E) (A, F), C

where bracket up means same rank.

Force C is along the axis of wrench so its torque is zero, am i right?


Or the ranking cannot be determined cos we don't know the angles between the r and F ?

 

[makeAwish]

hmm. i think i know how to solve..

 

[nlightner]

I would agree with your attempt at a solution. It is correct to rank the forces from largest to smallest, with force D having the largest torque and force C having zero torque. Force C is along the axis of the wrench, so it does not contribute to the overall torque. The ranking can be determined based on the magnitude of the forces alone, without considering the angle between r and F. However, if the angle between r and F was given, it could provide a more accurate ranking of the forces.