Jawabanmu

2014-05-08T12:52:12+07:00
Diketahui
Vo = 72 km/jam = 20 m/s
t = 2 menit = 120 s
a = 5 m/s²
jawab
s = Vo × t + 1/2 × a × t²
s = 20 × 120 + 1/2 × 5 × 120²
s = 2400 + 36000
s = 38400 m

Vt =  Vo + at
Vt = 20 + 5 × 120
Vt = 20 + 600
Vt = 620 m/s
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