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]