That means that there it doesn't make sense to specify an "absolute motion" - motion is always specified relative to some object (sometimes movement relative to the Earth is implied, not stated). There is no physical experiment that can tell the "true speed" of an object, so scientists conclude that there is no such thing as a "true speed".
Rest and motion are relative terms because an object's state of rest or motion is defined in relation to another object. An object can be at rest relative to one object but in motion relative to a different object. This concept is based on the principle of relativity in physics, as described by Galileo and later by Einstein in his theory of special relativity.
when position of the body with respect to an observer change with time then the body are said to be in motion.
An object is said to be in motion when it changes its position over time relative to a reference point. If an object is moving, it is undergoing a change in its position with respect to its surroundings.
Friction opposes the relative motion of surfaces in contact. It acts in the direction opposite to the direction of motion or tendency of motion between two surfaces.
motion
Rest and motion are relative terms because an object's state of rest or motion is defined in relation to another object. An object can be at rest relative to one object but in motion relative to a different object. This concept is based on the principle of relativity in physics, as described by Galileo and later by Einstein in his theory of special relativity.
when position of the body with respect to an observer change with time then the body are said to be in motion.
Relative motion
An object is said to be in motion when it changes its position over time relative to a reference point. If an object is moving, it is undergoing a change in its position with respect to its surroundings.
Friction opposes the relative motion of surfaces in contact. It acts in the direction opposite to the direction of motion or tendency of motion between two surfaces.
Motion is relative to an observer's frame of Reference.
At rest and in motion are relative terms. When we say 'in motion' or 'at rest' we mean relative to something else. If you were travelling in a car for instance, you would be at rest relative to the car but in motion relative to the outside world.
motion
motion is realtive
Motion is not a 'relative term'. Motion is relative.The book that you're reading on the airliner while you fly to the coast ismoving at 600 mph relative to somebody on the ground. But relative toyou and your eyes, the book is not moving at all, and you have no troublereading it until you fall asleep ... in the seat which is also moving at 600 mphrelative to that guy on the ground.Now comes the kicker: What is the real speed of the book ?Answer: There is no such thing. Motion is relative. The book, and anythingelse, only ever has speed that is relative to something else. And it can easilyhave 300 different speeds, relative to 300 different other things, which are allmoving relative to each other.
The statement "rest and motion are relative terms" means that whether an object is considered at rest or in motion depends on the observer's frame of reference. For example, a person sitting on a bus is at rest relative to the bus, but in motion relative to a person standing on the street. This illustrates that rest and motion are relative concepts.
The object is in motion relative to the reference point.