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2. 420000 m
3. 40 km/jam
4. 2 m/detik
5. 90 menit
v(kecepatan)=8 1/3 m/detik=25/3m/detik(m/s)
t(waktu)= ?
Jawab:
t=v/s=25/3/30000
=25/3×30000=250000 s
=69 1600/3600=69 16/36 jam=69 4/9 jam