Respuesta :
[tex]a = \displaystyle\frac{v-u}{t}[/tex]
[tex]-3 = \displaystyle\frac{v - 30}{3}[/tex]
[tex]v -30 = -9[/tex]
[tex] v = 21 m/s[/tex]
[tex]a = \displaystyle\frac{v-u}{t}[/tex]
[tex]-3 = \displaystyle\frac{v - 30}{3}[/tex]
[tex]v -30 = -9[/tex]
[tex] v = 21 m/s[/tex]