Two Equal Forces Are Applied to a Door at the Doorknob

question 12

Multiple Choice

Two equal forces are applied to a door at the doorknob. The first force is applied perpendicular to the door; the second force is applied at 30° to the plane of the door. Which force exerts the greater torque?

• A) the first applied perpendicular to the door
• B) the second applied at an angle
• C) both exert equal non-zero torques
• D) both exert zero torques
• E) Additional information is needed.

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