Practice!

Sample Problem

In a thunderstorm, the wind velocity in meters per second can be described by the function

 v(p) = 5.7 where p is the air pressure in millibars.

What is the air pressure of a thunderstorm in which the wind velocity is 49.3 meters per second? Round your answer to the nearest tenth of a millibar.

p = millibars

Solution

49.3 = 5.7

8.65 =

74.81 = 998 – p

p = 923.2