bicycle
Because the portion of tire touching the ground is not moving relative to the ground.
One point of view from which to describe motion is the observer's frame of reference. This point of view defines the position and motion of an object relative to the observer. By choosing a specific frame of reference, we can describe how an object moves in relation to that reference point.
From knowing nothing about physics and lots about biking, i think that you don't fall when you're moving because riding is all about correction. You fall to one side, so you steer that way so that the wheels are underneath you again, this keeps happening and you keep correcting it. When you're stopped, you're not steering, and so not moving the bottom of the bike back underneath you
Not after riding a bike, but rather during riding a bike. Your muscles convert chemical energy (a form of potential energy) into mechanical energy to do work.
free riding
The bike. Even though you and the bike are in motion the positions do not change.
Because the portion of tire touching the ground is not moving relative to the ground.
Fall Off, Start Moving, Bike Crash, Flat Tire
One point of view from which to describe motion is the observer's frame of reference. This point of view defines the position and motion of an object relative to the observer. By choosing a specific frame of reference, we can describe how an object moves in relation to that reference point.
Between ground and tires and between brake pads and moving surface.
is a bike mechanical
In German, you say "Fahrrad fahren" to mean riding a bike.
riding a bike can have an advantage over a plane because if you don't want to pay money than a bike is better and that riding a bike gives you cardio.
From knowing nothing about physics and lots about biking, i think that you don't fall when you're moving because riding is all about correction. You fall to one side, so you steer that way so that the wheels are underneath you again, this keeps happening and you keep correcting it. When you're stopped, you're not steering, and so not moving the bottom of the bike back underneath you
Between what's listed - the bike and the person is moving in relation to the tree.
on a bike
The person who is riding the bike dies...if you hit him/her hard enough.