Respuesta:
[tex]145.5s[/tex] ; [tex]767.88m[/tex]
Explicación:
Datos:
[tex]Velocidad-inicial: V_{o} =8km/h = 8* \frac{1000m}{3600s} = 2.222m/s[/tex]
[tex]Velocidad-final: V_{f} =30km/h = 30*\frac{1000m}{3600s} =8.333m/s[/tex]
[tex]Aceleracion: a = 150m/min^{2} = 150* \frac{1m}{3600s^{2} } =0.042m/s^{2}[/tex]
[tex]Tiempo: t = ?[/tex]
[tex]Espacio-recorrido: d = ?[/tex]
Fórmula:
[tex]t = \frac{V_{f} -V_{O} }{a}[/tex]
[tex]t = \frac{8.333m/s-2.222m/s}{0.042m/s^{2} } = \frac{6.111m/s}{0.042m/s^{2} }[/tex]
[tex]t = 145.5s[/tex]
[tex]d = \frac{V_{f}^{2} -V_{O}^{2} }{2a}[/tex]
[tex]d = \frac{(8.333m/s)^{2}-(2.222m/s)^{2} }{2(0.042m/s^{2} )} = \frac{69.439m^{2}/s^{2} -4.937m^{2} /s^{2} }{0.084m/s^{2} } =\frac{64.502m^{2}/s^{2} }{0.084m/s^{2 } }[/tex]
[tex]d = 767.88m[/tex]
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Respuesta:
[tex]145.5s[/tex] ; [tex]767.88m[/tex]
Explicación:
Datos:
[tex]Velocidad-inicial: V_{o} =8km/h = 8* \frac{1000m}{3600s} = 2.222m/s[/tex]
[tex]Velocidad-final: V_{f} =30km/h = 30*\frac{1000m}{3600s} =8.333m/s[/tex]
[tex]Aceleracion: a = 150m/min^{2} = 150* \frac{1m}{3600s^{2} } =0.042m/s^{2}[/tex]
[tex]Tiempo: t = ?[/tex]
[tex]Espacio-recorrido: d = ?[/tex]
Fórmula:
[tex]t = \frac{V_{f} -V_{O} }{a}[/tex]
[tex]t = \frac{8.333m/s-2.222m/s}{0.042m/s^{2} } = \frac{6.111m/s}{0.042m/s^{2} }[/tex]
[tex]t = 145.5s[/tex]
[tex]d = \frac{V_{f}^{2} -V_{O}^{2} }{2a}[/tex]
[tex]d = \frac{(8.333m/s)^{2}-(2.222m/s)^{2} }{2(0.042m/s^{2} )} = \frac{69.439m^{2}/s^{2} -4.937m^{2} /s^{2} }{0.084m/s^{2} } =\frac{64.502m^{2}/s^{2} }{0.084m/s^{2 } }[/tex]
[tex]d = 767.88m[/tex]