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Los datos son:
vi = 20 m/s
vf = 0 m/s
g = - 9,8 m/s²
vf² = vi² - 2gh
(0 m/s)² = (20 m/s)² - 2 (9,8 m/s²) (h)
0 m²/s² = 400 m²/s² - 19,6 m/s² (h)
- 400 m²/s² = - 19,6 m/s² (h)
(- 400 m²/s²) / (- 19,6 m/s²) = h
20,41 m = h
h = 20,41 m
Respuesta
Opción a)