Lever Arm of an Applied Force
A student applies a force perpendicular to a door at a distance of 0.8 m from the hinges. The door has a total width of 1.0 m. What is the lever arm for the applied force?
A
0.8 cos(90°) m
B
1.0 m
C
0.8 sin(90°) m
D
0.8 m
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