Help with physics problem?? ?

Question

so the problem says determine the conversion factor between (a) km/h and mi/h, (b) m/s and ft/s, and (c) km/h and m/s. but i dont really get what theyre asking. any advice is appreciated. thanks in advance!

Answer 1

They want to know what dimensionless constant you multiply one quantity by to get the other.

For example, take 100 km/h.

100 km/h -->  1.67 km/minute --> 0.0278 km/second --> 27.8 m/s

So the conversion factor here is 0.278

Take any speed given in km/h, multiply it by 0.278, and you have meters per second.