motion
When an object's distance from another object is changing, it is in motion. The change in distance indicates that the object is moving relative to the other object.
When an object's distance or direction from another object is changing, it is called motion.there are a number of possibilities depending on the exact nature of the physics.relative velocityrelative displacementrelative acceleration
The objects are in motion relative to each other.
No, the focal length of a mirror does not change when the object distance changes. The focal length of a mirror is a fixed property of the mirror itself. Changing the object distance will affect the position and size of the image formed by the mirror, but not the focal length.
An object with a distance-time graph that is a straight line parallel to the time axis is not moving, it is at rest. The object is not changing its position with respect to time.
When an object's distance from another object is changing, it is in motion. The change in distance indicates that the object is moving relative to the other object.
When an object's distance or direction from another object is changing, it is called motion.there are a number of possibilities depending on the exact nature of the physics.relative velocityrelative displacementrelative acceleration
Displacement.
An object is in motion only if its distance from a reference point is changing. The average speed of the object is given by the object's rate of change of displacement from the reference point over time.
Motion
If the distance is not changing, the object is not moving. If the distance is increasing or decreasing linearly then the object is moving at a constant velocity. If the distance is increasing or decreasing parabolically then the object is being accelerated or decellerated.
The objects are in motion relative to each other.
No, the focal length of a mirror does not change when the object distance changes. The focal length of a mirror is a fixed property of the mirror itself. Changing the object distance will affect the position and size of the image formed by the mirror, but not the focal length.
The object does not appear to be staying in one place. Or, it is moving if it's distance from another object is changing.
An object with a distance-time graph that is a straight line parallel to the time axis is not moving, it is at rest. The object is not changing its position with respect to time.
A stationary object on a distance-time graph will be represented by a horizontal line. This indicates that the object is not changing its position over time and remains at a constant distance from a reference point.
A horizontal line means that the distance is not changing, therefore we can infer that the object in question is stationary - i.e. not moving.