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Los datos son:
vi = 0 m/s
t = 4 s
g = 4,8 m/s²
vf = ?
h = ?
Calculamos la velocidad alcanzada.
vf = gt
vf = (9,8 m/s²) (4s)
vf = 39,2 m/s
Respuesta.
vf = 39,2 m/s
Calculamos la altura
h = 1/2 gt²
h = 1/2 (9,8 m/s²) (4s)²
h = 4,9 m/s² (16s²)
h = 4,9 m (16)
h = 78,4 m
Respuesta
h = 78,4 m