Dr. Steve Rapp, 2005

Pairs Exercise 1

The
force of wind acting on a body can be computed by the formula:

F =
0.00256 Cd V2 A

where:

F =
wind force (lbf)

Cd= drag coefficient (no units)

V =
wind velocity (mi/h)

A =
projected area(ft2)

To keep the equation dimensionally homogeneous, what are the units of 0.00256?