Question

A single-celled animal called a paramecium propels itself quite rapidly through water using its hair-like cilia. A certain paramecium experiences a drag force of

Fdrag=−bv2Fdrag=−bv2

in water, where the drag coefficient bb is approximately 0.290 kg/m0.290 kg/m. If the paramecium's speed vv is 0.000157 m/s0.000157 m/s, what is the magnitude of the propulsion force that the creature must generate to move at this constant speed?

magnitude:

N

Answer 1