Lever Calculator
Find Unknown Force
F2 = F1 × d1 / d2
Find Unknown Distance
d2 = F1 × d1 / F2
Formula
F1 × d1 = F2 × d2 | MA = d_effort / d_load
Frequently Asked Questions
What is the lever principle?
The lever principle states that F1 × d1 = F2 × d2, where F is force and d is distance from the fulcrum. When balanced, the moments (torques) on each side of the fulcrum are equal.
How does a lever provide mechanical advantage?
By placing the fulcrum closer to the load and farther from the effort, a lever multiplies force. The mechanical advantage equals the effort arm length divided by the load arm length. A longer effort arm means less force is needed.
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