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Andrej [43]
3 years ago
9

Señale la veracidad (V) o falsedad (F) de las siguientes proposiciones: I. Una partícula está en equilibrio cuando se encuentra

en reposo. II. Una partícula se encuentra en equilibrio, el observador no registra fuerza alguna sobre la partícula. III. Un cuerpo que se mueve con rapidez constante se encuentra en equilibrio. FFV VFF FFF VVF
Physics
1 answer:
Alex Ar [27]3 years ago
3 0

Answer:

(i) V, (ii) F, (iii) F

Explanation:

Se comprueba la veracidad de cada proposición:

(i) Una partícula está en equilibrio cuando se encuentra en reposo.

Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante. Por ende, la proposición es verdadera.

(ii) Una partícula se encuentra en equilibrio, el observador no registra fuerza alguna sobre la partícula.

Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante.

Además, la Segunda Ley de Newton establece que la fuerza neta sobre la partícula como resultado de fuerzas externas es igual a cero. Lo cual quiere decir que una partícula puede estar en equilibrio y estar sometidas a fuerzas externas. En conclusión, la proposición es falsa.

(iii) Un cuerpo que se mueve con rapidez constante se encuentra en equilibrio.

Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante.

La rapidez es la magnitud de la velocidad, para que la velocidad sea constante debe ser constante tanto en magnitud como en dirección. La afirmación no garantiza que la dirección de la partícula sea constante. Por ende, la proposición es falsa.

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