Final answer:
To determine which of the forces labeled A-E will provide the greatest torque when applied to an object anchored at point P, identify the force applied furthest from P and at a 90-degree angle to the lever arm.
Step-by-step explanation:
The question involves calculating the magnitudes of torques due to different forces about a pivot point, labeled 'P.' Torque is a measure of the turning force on an object and is calculated as T = rF sin ϴ, where T is the torque, r is the distance from the pivot point to the point where the force is applied, F is the magnitude of the force, and ϴ is the angle between the force direction and the lever arm. Since all forces are of equal magnitude, the force that will produce the greatest torque will be the one applied furthest from point P and at an angle that maximizes sin ϴ, which occurs at 90°. As such, the force applied perpendicularly to the lever arm at the greatest distance from P will provide the greatest torque.