Respostas

2013-12-07T12:13:16-02:00
V1 = 4 m/s
v2 = 12 m/s
a = (v2 - v1)/t
a = (12 - 4)/2
a = 8/2 = 4 m/s²
2013-12-07T12:14:57-02:00
Am=vf-vi/tf-ti
am=12-4/2-0
am=8/2
am=4m/s²