Physics - Vectors Question with Solution | TestHub

Whenever a body moves in air, it experiences a drag force that is always opposite to its velocity. You might have noticed this drag force while taking part in a distance run. It is quite obvious when we try to swim in a swimming pool. In the first case, air exerts a drag force, and in the second case, water in the swimming pool exerts a drag force. The force can be said to be $\vec{F}=-C\vec{v}$, where $C$ is the drag coefficient.