Respostas

2013-11-23T16:50:21-02:00
T= F . S
100=20 . S
20S= 100
S= 100 / 20
S= 5 m
1 5 1
2013-11-23T16:56:49-02:00
T=f.d
100=20.d
d·=100/20
d=5 m
1 5 1