A combination of inertia and centrifugal force. The wheels, once rotating, create centrifugal force which in conjunction with gravity cause the bicycle to move forward creating inertia. the more energy put into the bike via the drivetrain, the more inertia is created and the more stable the bike becomes.
The turning wheels act as a gyroscope to keep the position constant (upright).
It's a stationary bicycle where you're sitting fairly upright, pretty much like on a regular bicycle.
You are not moving relative to the bicycle.
Also known as a recumbent bicycle, a reclining bicycle is a bicycle you can use from a seated position that is lower to the ground than an upright bicycle.
Because of something called inertia. Things that are moving likes to keep moving, and things that aren't moving likes to stay put. For anything to change from moving to stationary, or stationary to moving, there has to be an outside force acting on them.
It is your momentum of moving forward that has to be overcome before your brakes can bring the bicycle to a stop.
A light bike is easier to get moving.
Of course.
Yes. You have to be traveling with the flow of traffic. A bicycle is considered a vehicle therefore all the same moving laws of a car apply to a bicycle while on the road.
You stir the paddles and the wheel start moving.
stay upright
20 kg-m/s