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72 km/jam = 20m/s
t(s) = 0,05s + 1
Ditanya :
t(20) = ?
Jawab :
t(20) = 0,05(20) + 1
t(20) = 2
Jadi lama lampu kuning akan tetap menyala apabila batas kecepatan dijalan itu adalah 2 detik