Respuesta:
a = - 0.69 m/s²
d = 691.67 m
Explicación:
1 km = 1,000 m
1 h = 3,600 s
120 km/h = 120,000/3,600 m/s = 33.33 m/s
46 km/h = 46,000/3,600 m/s = 12.77 m/s
a = (v(final) - v(inicial) / t = (12.77 - 33.33) / 30
a = - 20.56 / 30 = - 0.69 m/s²
La distancia es
d = v(promedia) . t = (12.77 + 33.33)/2 × 30
d = 23.05 × 30 = 691.67 m
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Respuesta:
a = - 0.69 m/s²
d = 691.67 m
Explicación:
1 km = 1,000 m
1 h = 3,600 s
120 km/h = 120,000/3,600 m/s = 33.33 m/s
46 km/h = 46,000/3,600 m/s = 12.77 m/s
a = (v(final) - v(inicial) / t = (12.77 - 33.33) / 30
a = - 20.56 / 30 = - 0.69 m/s²
La distancia es
d = v(promedia) . t = (12.77 + 33.33)/2 × 30
d = 23.05 × 30 = 691.67 m