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D=(Vf+Vo)(t)/2
Formula: v = u + at
Donde:
v = velocidad final.
u = velocidad inicial.
a = aceleración.
t = tiempo.
Datos:
u = 16 m/s
v = 0 m/s, pues se detiene.
a = ???
t = 12 s
Reemplazamos:
0 m/s = 16 m/s + a * 12 s
- 16 m/s = a * 12 s
(- 16 m/s) / (12 s ) = a
- 1.33 m/s² = a
2) Distancia recorrida al frenar.
Fórmula: 2 s = ( u + v ) * t
Donde:
s = Espacio recorrido.
u = Velocidad Inicial.
v = Velocidad Final.
t = Tiempo.
Datos:
s = ???
u = 16 m/s
v = 0 m/s
t = 12 s
Reemplazamos:
2 s = (16 m/s + 0 m/s)* 12 s
2 s = (16 m/s)*12 s
2 s = 192 m
s = 96 m