Question

a fish applies 14 n of force north (up) to swim through a current. in which direction does the viscous friction force act? 14 n east (right) west (left) north (up) south (down)

Explanation:

Viscous friction (drag) opposes the relative motion of an object through a fluid. The fish is moving North, so the viscous friction force acts opposite to its direction of motion, which is South (down).

Answer:

South (down)