As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re

Question

As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1 ?

Accepted Answer

Increases linearly with V. For very low Reynolds numbers (Re << 1), the flow is creeping flow. In this regime, drag force is proportional to velocity (V).