Answer
$65mi/h=29.06m/s\approx29.1~m/s$
Work Step by Step
We need to convert miles per hour into meters per second.
The conversion factors are
$1$ $ mile=1609.34$ $meters$
and
$1hr=60*60~s=3600s$
Thus, we have:
$65mi/h*\frac{1609.34meters}{1 mile}*\frac{1hr}{3600s}=29.06m/s\approx29.1~m/s$
