Hamilton King
01/18/2024 · Senior High School

(9 Un automovilista que lleva una rapidez de 80 \( \mathrm{~km} / \mathrm{h} \) aplica los frenos para detenerse en 5 se- gundos ante un semáforo, considerando la acele- ración constante. Calcular: a) La magnitud de su aceleración. b) La distancia total recorrida desde que aplicó los frenos hasta detenerse. c) La rapidez que lleva a los 2 segundos de ha- ber aplicado los frenos. d) La distancia que recorrió durante los prime- ros 2 segundos de haber frenado.

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a) Aceleración: \(4.44 \, \text{m/s}^2\) b) Distancia total recorrida: \(55.6 \, \text{m}\) c) Velocidad a los 2 segundos: \(13.34 \, \text{m/s}\) d) Distancia en los primeros 2 segundos: \(35.56 \, \text{m}\)

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