Resposta :
a)
[tex]s= 20 + 3(0) \\ \\ s = 20 \: m[/tex]
b)
[tex]s = s_{0} + vt = 20 + 3t \\ \\ logo \: \: v = 20m/s[/tex]
[tex]s = 20 + 3(30) = 20 + 90 = 110 \: m[/tex]
a)
[tex]s= 20 + 3(0) \\ \\ s = 20 \: m[/tex]
b)
[tex]s = s_{0} + vt = 20 + 3t \\ \\ logo \: \: v = 20m/s[/tex]
[tex]s = 20 + 3(30) = 20 + 90 = 110 \: m[/tex]