dik: v:54 km/jam rubah ke m/s

54 × 1000 = 54000 ÷ 3600
= 15 m/s

Maaf kalo salah

v = 54km/jam
v= 54km/1jam
v= 54(1000)m/1(3600)s
v = 54000m/3600s
v = 15m/s