APFIVE Lever Arm of an Applied Force
A student pushes horizontally on a door at a distance of 0.8 m from the hinges. If the door is 1.0 m wide and the force is applied perpendicular to the door’s edge, what is the lever arm?
A
1.0 m
B
0.8 sin(90°) m
C
0.8 cos(90°) m
D
0.8 m
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