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vt = 72 km/jam = 20 m/s
vo = 36 km/jam = 10 m/s
s = 80 m
Ditanyakan = t=?
Jawab =
a =
a =
a =
a = 0,0625 m/s²
vt = vo + a.t
20 = 10 + 0,0625.t
20/10 = 0,0625.t
2 = 0,0625/t
t = 2/0,0625
t = 32 sekon