Good question > 50% of the answer

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In summary, the law of lever is a conditional law, meaning it is not absolute and has a solution. This is similar to other physical equations, such as the product of initial pressure and volume being equal to the final pressure and volume at constant temperature, and the initial momentum being equal to the final momentum in elastic collisions.
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deda
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Let the good question be your guide on the journey to the truth!
My question for you goes: Is the law of lever conditional law and if so then which condition is that?
 
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If condition is to mean not absolute or mean having a solution.

There are physical equations that have infinite number of solution. A case in point are Einstein's field equations of general relativity.

others infinite solutions are the following:

At constant temperature, the product of initial pressure and volume is equal to the final pressure and volume.

[tex]P_i V_i = P_f V_f [/tex]

Also for elastic collisions, the initial momentum is equal to the final momentum.

[tex] m_1 v^{i}_1 + m_2 v^{i}_2 = m_1 v^{f}_1 + m_2 v^{f}_2 [/tex]
 

Related to Good question > 50% of the answer

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