Two Equal-Magnitude Forces Are Applied to a Door at the Doorknob

question 142

Multiple Choice

Two equal-magnitude forces are applied to a door at the doorknob. The first force is applied perpendicular to the door, and the second force is applied at 30° to the plane of the door. Which
Force exerts the greater torque about the door hinge?

• A) Both forces exert zero torque.
• B) Both forces exert equal non-zero torques.
• C) the first force (applied perpendicular to the door)
• D) the second force (applied at an angle)

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