Answer:
909.8 millibars.
Explanation:
The mean sustained velocity, v be determined by the equation:
, where p is the air pressure, in millibars, at the center of the hurricane.
Given that: v=64 meters per second, we are to find the value of p.
The approximate air pressure at the center of a hurricane when the mean sustained wind velocity is 64 meters per second is 909.8 millibars.