Which of the following about mechanical advantage is true?
A. It is the ratio of its effort to the length of it's resistance arm.
B. It is equal to the length of the resistance arm divided by the length of the effort arm.
C. If the mechanical advantage is more than 1.0, the lever produces more speed or distance than the input.
D. If the mechanical advantage is less than 1.0, the lever produces less force than the input.
Answer: D
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