Question

No 1 dan 2 tolong ya .. BESERTA CARANYA!!!

Answer 1

1)
dik:
V0 = 0 m/s (karena diam)
Vt = 72 km/jam = 20  m/s
t = 30 s
a = ...?

Vt = V0 + at
20 = 0 + a . 30
20 = 30a
a = 20/30
a = 0,67 m/s²

2)
dik:
g = 10 m/s²
t = 3 s
Vt = ...?

Vt = V0 + gt
Vt = 0 + 10 . 3
Vt = 30 m/s