No, because MPH refers to a linear velocity, rather than a rotational one.
However, I think you might be asking if a point on the equator has an instantaneous linear velocity of 900mph. Such a point moves about 6000*2*pi km every 24 hours, so it moves at 6000*2*pi/24 km/h = 1500km/h approx. So 900mph is not a painful out.
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The speed is 559.234073013601 miles per hour
900/75 = 12 hours
about 13 hours.
15 hours.
the average speed for a plane is 500 to 900 miles per an hour.