A fish swimming in water with constant velocity v0 experiences a viscous drag force that is proportional to the square of its velocity (i.e. Fdrag∝v2). If the fish doubles its velocity, then the thrust force F that it must generate to maintain this new velocity is related to the fish's original thrust force F0 via
a) F=2F0; b) F=2F0; c) F=4F0; d) F=F02;
e) None of the above.