Respuesta:
a=3 m/s^2
Xf=450 m
Vf=45 m/s
Explicación paso a paso:
Vi=15 m/s
Vf=60 m/s
t=15 seg
a=(Vf-Vi)/t
a=(60-15)/15=3 m/s^2
Aceleración para t=12 seg
d=tVi+(at^2)/2
a=(60-15)/12=3.75 m/s^2
d=(12)(15)+((3.75) (12)^2)/2=180+216
d=450 m
Velocidad Vf a los 10 seg
Vf=Vi+at
Vf=15+3*10=45 m/s
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Verified answer
Respuesta:
a=3 m/s^2
Xf=450 m
Vf=45 m/s
Explicación paso a paso:
Vi=15 m/s
Vf=60 m/s
t=15 seg
a=(Vf-Vi)/t
a=(60-15)/15=3 m/s^2
Aceleración para t=12 seg
d=tVi+(at^2)/2
a=(60-15)/12=3.75 m/s^2
d=(12)(15)+((3.75) (12)^2)/2=180+216
d=450 m
Velocidad Vf a los 10 seg
Vf=Vi+at
Vf=15+3*10=45 m/s