19.90 km/hr is __________ in m/s?

To convert kilometers per hour (km/hr) to meters per second (m/s), you can use the conversion factor that 1 km equals 1000 meters and 1 hour equals 3600 seconds. The formula to make this conversion is:

1 km/hr = (1000 meters / 3600 seconds) = 1 / 3.6 m/s.

To perform the conversion for 19.90 km/hr, you multiply 19.90 by the conversion factor:

19.90 km/hr * (1 m/s / 3.6 km/hr) = 19.90 / 3.6 m/s.

Calculating this gives:

19.90 / 3.6 ≈ 5.5277 m/s.

Rounding this to one decimal place yields approximately 5.5 m/s, confirming that this answer is accurate. This correct transformation shows the principle of unit conversion from larger to smaller units in a clear manner, maintaining consistency with the metric system.