Which formula is used to calculate wind chill?

The formula for calculating wind chill is based on the effects of wind speed and air temperature on human skin. The correct formula, which is commonly used, is represented accurately as 35.74 + 0.6215T - 35.75(V^0.16) + 0.4275T(V^0.16).

In this formula:

• T represents the temperature in degrees Fahrenheit.

• V represents the wind speed in miles per hour.

This formula is designed to give an index value that reflects the perceived temperature, or how cold it actually feels when the wind is taken into account, rather than the ambient air temperature alone. The presence of the wind can significantly lower the perceived temperature, leading to a higher risk of frostbite and hypothermia. The constants and coefficients in the formula have been established based on empirical research about how humans perceive temperature under different windy conditions.

Other options do not reflect the correct constants and coefficients that have been validated in studies and standard meteorological practices. Thus, the intricacies of the correct formula make it essential for accurately conveying the effects of temperature and wind speed on cold exposure.