For this case we have to take into account the following conversions:
 [tex]1 mile = 1609.34 meters
1 minute = 60 seconds[/tex]
 Let's first transform the expression to miles per seconds squared:
 [tex](15.5) * (1 / 1609.34) = 0.009631277 mi / s ^ 2
[/tex]
 Then, we transform the result to miles per minute squared.
 We have then:
 [tex](0.009631277) * (60) ^ 2 = 34.7 mi / min ^ 2
[/tex]
 Answer:
 the rate in miles/min^2 is:
 [tex]34.7 mi / min ^ 2[/tex]
