That's a good illustration. I use 175mm crank arms, so 2 m/sec pedal speed translates to 109 rpm, a decent high-power cadence. The actual conversion factor from kg-force to newtons is 9.8, your illustration uses 10 which makes for ease of calculation. Newtons are handy because they translate directly to power.....just multiply newtons by velocity (meters/second) and you've got watts.
What all this implies of course is that we need to train to produce decent force at high velocity and high repetitions to achieve useful power output (and speed) on the bike. Being able to do a 400 lb squat for a few reps just doesn't translate into being able to sprint at 35 mph on a bike....for all kinds of reasons.