Question
State the principle of levers.
✓
Answer
The principle of a lever states that the product of the load and the load arm is always equal to the product of the effort and the effort arm.
Load x Load arm = Effort x Effort arm
$\frac{\text { Load }}{\text { Effort }}=\frac{\text { Effort arm }}{\text { Load arm }}$
The above ratio is called the mechanical advantage of a lever.
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