Two Equal Forces Are Applied to a Door

question 66

Multiple Choice

Two equal forces are applied to a door. The first force is applied at the midpoint of the door; the second force is applied at the doorknob. Both forces are applied perpendicular to the door. Which force exerts the greater torque?

• A) the first at the midpoint
• B) the second at the doorknob
• C) both exert equal non-zero torques
• D) both exert zero torques
• E) Additional information is needed.