Question

The mean sustained wind velocity, v, can be determined by the equation v = 6.3 StartRoot 1013 minus p EndRoot, where p is the air pressure, in millibars, at the center of the hurricane. What is the approximate air pressure at the center of a hurricane when the mean sustained wind velocity is 64 meters per second?
103 millibars
194 millibars
363 millibars
910 millibars

Answer 1

v = 6.3√(1013 − p). Set v = 64:

64/6.3 ≈ 10.1587, (64/6.3)^2 ≈ 103.2

p = 1013 − 103.2 ≈ 909.8 ≈ 910 millibars.

Answer: 910 millibars.