The following conversions occur frequently in physics and are very useful.
(a) Use I mi = 5280 ft and I h = 3600 s to convert 60 mph to units of ft/s.
(b) The acceleration of a freely falling object is 32 fi/s2, use 1 ft = 30.48 cm to express this acceleration in units of rn/s2
(c) The density of water is 1.0 g/cm3. Convert this density to units of kg/m3.