Friction
There is no such thing as a "stationary" object. Every motion is always measured relative to something else, which, coincidentally, is what the question is all about. The thing against which motion is measured is called the "reference frame".
A force that maintains motion is called inertia. This is the same as to what is normally referred to as momentum.
Apperant motion
it is something called vertical motion
The curved path is called projectile motion.
There is no such thing as a "stationary" object. Every motion is always measured relative to something else, which, coincidentally, is what the question is all about. The thing against which motion is measured is called the "reference frame".
it is called Motion against gravity
A force that maintains motion is called inertia. This is the same as to what is normally referred to as momentum.
Apperant motion
motion =)
Some animals move in a what is called a "jerky motion" because in their genes their is something that is called motinasiones. Witch means move fast before you get killed fast.
Retrograde Motion
Retrograde Motion
Newton's First Law is called his First Law of Motion. It states that an object in motion tends to stay in motion unless influenced by something else that slows or stops its motion. Likewise, an object at rest - not moving - tends to stay at rest unless influenced by something else that starts it moving.
Because friction is exerted against the direction of motion
momentum Further answer Momentum is the reason something keeps moving, it's not really what it's called. Motion or perpetual motion is more like the answer to the question.
it is something called vertical motion