Ketentuan Menjawab : 1) Jawaban tidak copas 2) Jawaban menggunakan jalan/cara 3) Jawaban jelas
Ani is riding her bicycle to Tono's house. In the first 2 minutes , Ani has moved a 200 m; and in the 2nd 4 minutes, Ani has moved a 800 m; in next 6 minutes , she has moved a 1000 m. The average speed of Ani's bike is... a) 16,6 km/hour b) 12 km/hour c) 10 km/hour d) 8 km/hour
s = 200 m
t2 = 4menit = 4x60 = 240 sekon
s = 800m
t3 = 6menit = 6x60 = 360 sekon
s = 1000m
Dit v..........?
v = s/t
v = 200 + 800 + 1000 / 120 + 240 + 360
v = 2000m/720s
v = 2,8 m/s
v = 2000/1000/720/3600
v = 2000 x 3600 / 1000 x 720
v = 7200000/720000
v = 10km/jam