In physics, air resistance is modeled as a force F that depends on the square of the speed v at which an object passes through air, according to the equation: F = 1/2pv^2CA, where A is the cross-sectional area of the object, p is the density of the air, and C is a quantity called the drag coefficient. If the units of force F are kg-m/s^2, then what would be the units of the drag coefficient C for the air resistance equation to make physical sense? [Assume that A, v, and p are measured in standard mks units.]
Select one:
a. m^3/kg
b. m/s
c. C is unitless
d. m/kg
e. s/m