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A force applied to a door produces a counterclockwise torque, so the door will:
ARotate clockwise only
BMove in a straight line
CStay perfectly still
DRotate counterclockwise
Answer & Solution
Correct answer: D. Rotate counterclockwise
1. Torque has a rotational sense, just as force has a direction.
2. Counterclockwise torque is produced by the force in the figure.
3. That means the door will rotate counterclockwise.
4. A smaller force at the same distance produces a smaller counterclockwise torque.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 9 'Statics and Torque', sections 9.1-9.5_
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