The result of your conversion between mile/second and foot/second appears here
To convert between Mile/second and Foot/second you have to do the following:
First divide 0.3048*5280 / .03048 = 52800.
Then multiply the amount of Mile/second you want to convert to Foot/second, use the chart below to guide you.
Symbol: m/s
No description
Symbol: ft/s
No description