Penyelesaianv = 30 m/st = 20 menit[tex]20 ~\text{menit} = 20 \times 60[/tex][tex]= 1.200~ \text{detik}[/tex][tex]s = v \times t[/tex][tex]= 30~ \text{m/s} \times 1.200 ~\text{s}[/tex][tex]= 36.000 ~\text{m}[/tex][tex]36.000 ~\text{m} = 36 ~\text{km}[/tex]jarak tempuh = 36 km