Molecular motors are often studied by attaching them to small plastic spheres. These sph...

Molecular motors are often studied by attaching them to small plastic spheres. These spheres enable the motor’s motion to be observed with a microscope and are much larger than the motor. Consider a molecular motor to which a plastic sphere of radius 20 nm is attached. As the motor moves through water, a drag force given by Equation 3.23 acts on the sphere. If the molecular motor is able to produce a power output of what is the speed of the motor as it pulls the sphere through water?

(reference equation 3.23)