A class_ lever never has a mechanical advantage.
A class_ lever always has a mechanical advantage.
A_ class lever could go either way.
2;3;1
2;1;3
1;2;3
3;2;1
A class_ lever always has a mechanical advantage.
A_ class lever could go either way.
2;3;1
2;1;3
1;2;3
3;2;1