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kakasveta [241]
3 years ago
7

1. Un disco de 12cm de radio gira a 450 r.p.m. Calcula el valor de la velocidad angular en rad/s. 2. Un disco de 40 cm de radio

gira a 33 r.p.m. Calcula el valor de velocidad angular en rad/s.
Physics
1 answer:
Marat540 [252]3 years ago
3 0

Respuesta: 47,13; 3.456

Explicación:

Dado que la velocidad angular 'ω' = Conversión a radianes por segundo:

Para convertir a radiante por segundo:

1. Divida el valor en revolución por minuto entre 60, en otro para obtener el valor en revolución por segundo.

2. Luego, el valor obtenido se multiplica por 2π, lo que indica una revolución completa en otro para obtener el valor en radianes por segundo.

A.) ω = 450 r.p.m o 450 revoluciones por minuto.

450 r.p.m = 450/60 × 2π

450 r.p.m = (7.5) × 2 × 3.142 = 47.13 rad / sec

B.) ω = 33 r.p.m o 33 revoluciones por minuto.

33 r.p.m = 33/60 × 2π

33 r.p.m = (0.55) × 2 × 3.142 = 3.456 rad / sec

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