tong di bantu lagi yah.....

1. 6. 50 m/detik = 180 km/jam
50 m/detik = 0,05 km
1 detik = 1/3600 jam
-50 m/s=0,05 km / (1/3600) jam
= 0,05 . 3600
=180 km/jam

2. 0,5 km/menit = 30 km/jam
1 Jam = 60 menit
0,5 . 60 = 30 km/jam

3. 40 cm/detik = 24 m/menit
40/100 : 1/60 m /menit
4/10 x 60 m/menit
= 24 m/menit

4. 50 mm/detik = 3 m/menit
= 50 : 10000 / 1:60
= 1/60 x 60/1
= 60/20
= 3

5. 2 cm/detik = 0,072 km/jam
= 2 : 100000 / 1 : 3600
=2/100000 x 3600
=0,072 km/jam

Semoga membantu ...