Question

Physical science

HELP ASAP PLZ!! Which represents the greatest speed: 56 m/s, 560 cm/s or .56 km/s? Explain your answer with math.

Answer 1

0.56 km/s

Step-by-step explanation:

We will define a single system of units for measurement, for this case meters per second [m/s]. That is, we must convert the rest of units such as centimeters per second and kilometers per second to meters per second.

`560[(cm)/(s)]*((1m)/(100cm) )=5.6[m/s]\\0.56[(km)/(s)]*((1000m)/(1km) )=560[m/s]`

Therefore the speed of 0.56 [km/s] is the greatest of all