Asked by Emmanuel

A vehicle is travelling 1.0x10^2 km/h. what is the spped of the vehicle in metres per second?
28m/s
27.8m/s
3.6x10^2m/s
1.0x10^4m/s
Answered by Steve
the value does not change when you multiply it by 1. So, write 1 in the ways you need to get the units you want:

100km/hr * 1000m/km * 1hr/3600s = 27.778 m/s
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