i don't understand how the viscous and applied force are acting together to create the net force. I believe that some form of a momentum equation has to be used for part B
Unicellular organisms such as bacteria and protists are small objects that live in dense fluids. As a result, the resistive force they feel is large and viscous. Since their masses are small their motion looks very different from motion in a medium with little resistance. Paramecia move by...