Answer:
59 feet per second
Step-by-step explanation:
[tex]40 mph = \frac{40*5280feet}{1hour} \\40mph = 211200 feet/per/hour[/tex]
to convert 211200 feet per hour to feet per second, we need to know how many seconds are in one hour
60seconds * 60 minutes = 3600 seconds
[tex]211200/3600 = 58.66666666666.... =59[/tex]