Respostas

2014-02-08T13:59:52-02:00
100 km/h --> 100.000 m/3600 s = 27,8 m/s
a =  \frac{v}{t} \\\\
a  =  \frac{27,8}{10} \\\\
a = 2,78 m/s^{2}
6 4 6
2014-02-08T14:08:03-02:00
Olá
v=a.t
100k/h=           1km---1000m     1h-------3600s              100000m;3600s=
27,7=a.10         1h-------3600s     
  a=2,7 m/s²               100000m/3600s=27,7 m/s