tolong no 9, dengan caranya

Grafik v-t
Vo = 8 m/s
Vt = 16
t
S = 48 m
a = __ ?
S = ½ (Vo + Vt) · t
48 = ½ (8 + 16) · t
48 = 12 t
t = 4 s
Vt = Vo + a t
16 = 8 + a (4)
8 = 4a
a = 8/4 = 2 m/s²