Respostas

2013-09-17T12:00:46-03:00
Am = ΔV / Δt

ΔV = V.Final - V.Inicial => 72 - 0 => 72 m/s
Δt = t.Final - t.Inicial => 6 - 0 => 6 s

Am =  \frac{72}{6}

Am = 12 m/s^{2}
2 5 2
2013-09-17T12:28:37-03:00
A=v/t
a=72/6
a=12m/s²                 
1 3 1