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laiz [17]
3 years ago
6

Resuelva el siguiente ejercicio. Un armario de 120 kg descansa sobre una superficie plana, determine la fuerza de rozamiento si

el coeficiente de rozamiento para el cuerpo vale 0,4 y realice un gráfico indicando las fuerzas indicando las fuerzas que actúan el en armario.
Physics
1 answer:
aalyn [17]3 years ago
4 0

Responder:

470.4N

Explicación:

La fuerza de fricción se expresa mediante la fórmula;

Ff = nR

n es el coeficiente de fricción

R es la reacción

R = peso = mg

Ff = nmg

Dado

n = 0,4

masa m = 120kg

g es la aceleración debida a la gravedad = 9,8 m / s²

Sustituir en la fórmula;

Ff = 0,4 (120) (9,8)

Ff = 470,4 N

Por tanto, la fuerza de fricción es 470,4 N

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a wire carries a current of . the wire is formed into a single circular loop and placed in a magnetic field of intensity . find
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The maximum torque that can act on the loop is 7.875 N-m.

Torque:

Torque is a twisting or turning force that tends to cause rotation around an axis, which might be a center of mass or a fixed point. Torque can also be thought of as the ability of something that is rotating, such as a gear or a shaft, to overcome turning resistance.

The formula of torque:

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Therefore the torque is 7.875 N-m.

To know more about the Torque refer to the link given below:

brainly.com/question/1691855

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2 years ago
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