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The whole action-reaction thing would keep this device from generating a net propulsive force. As the mass is propelled upwards by the rotation, the same amount of force which moves it upward will push the rest of the device (the assembly to which the mass is attached) downward. As the mass is pulled back down, the assembly will be pulled up in response. The net forces cancel out.

Tsup,I just figured out a way to solve one problem. Let's say there are two circles that have the same middle. One of them is bigger and one of them is smaller. Both of them are trajectories of masses. In the outer one, the mass moves twice that slower then in the inner circle, but the centrifugal forces of both of them have the same vallue. The circles not only have the same middle but are attached to each other with this middle.So that on one of the sides of such a configuration the centrifugal forces double and on the other "dissapear".Sinsilly Yours..Remigiusz Fajfer

I'm wondering if the reason that the boat was able to progress across the water was due to friction forces.

Now that's a complete meesh-mash. The picture shows exactly nothing else but a superposition of the centrifugal forces.All You did was drawing a circle and saying there's nothing to add. Look at the picture and show a mistake there if there is any.Besides... Newton's Laws are only valid for inertial assemblies and not valid for not inertial assemblies. Newton probably knew that situations like these might appear.As for the first "wrong assumption" - it is good only in this case.If we're speaking the way "hell-no"... please comment the movie I recently placed here.I don't know if You're a bad mathematician, or just joking... add thisFx=cos(angle)*k, Fy=sin(angle)*kwithFx=cos(2*angle)*k, Fy=sin(2*angle)*kand You'll get a result