415.
De las siguientes máquinas simples, ¿Cuál
es un ejemplo de palanca de segundo grado?
A) Escoba
B) Tijeras
C) Balanza
D) Carreta
E) Pinzas



Answer :

Final answer:

Tijeras (B) - Tijeras (B) is an example of a second-class lever similar to scissors, which represent a double-lever system in simple machines.


Explanation:

Scissors are most analogous to a double-lever system in the context of simple machines. In the given options, tijeras (B) - Tijeras (B) would be the best example of a second-class lever due to its mechanical advantage where the resistance is between the effort and the fulcrum.


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