Question

54km/jam=............m/s 64g/cm3=.........kg/m3

Answer 1

1. 54 km/jam = .... m/s
1 km= 1.000 m
1 jam = 3.600 s,, maka :
54 km/ jam
= 54 km/1 jam
= 54 × 1.000 m / 1 × 3.600 s
= 54.000m / 3.600 s
= 15 m/s

2. 64 g/cm³ =... kg/m³
1 g = 0,001 kg
1 cm³=  0,000001 m³,, maka:
64 g/cm³
= 64g/1cm³
= 64×0,001 kg / 1×0,000001 m³
= 0,064 kg / 0,000001 m³
= 64.000 kg/m³