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Free Version
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# Door Knobs

APPH12-ISNHNJ

Shown in the image is a door with marked hinges and 4 labeled doorknobs. An equal pulling force, $F$, is applied to each door knob perpendicular to the hinge to doorknob line.

Which of the following correctly ranks the applied torque to each doorknob from greatest torque to least torque (magnitude only)?

A

$C$ > $B = D$ > $A$

B

$A$ > $B = D$ > $C$

C

$A$ > $B$ > $D$ > $C$

D

$C$ > $B$ > $D$ > $A$