You Can Reduce Drag on a Fixed Object in a Fluid

Question

You can reduce drag on a fixed object in a fluid by
A) Increasing the cross-sectional area exposed to the flow
B) Decreasing the cross-sectional area exposed to the flow
C) Adding projections out from the side to break up the flow
D) Changing its density

Accepted Answer

Decreasing the cross-sectional area exposed to the flow reduces the surface area in contact with the fluid, thereby reducing drag.