The object is stationary as its velocity is zero. The velocity of an object is the gradient of its distance-time graph and as the graph is a horizontal straight line, its gradient is zero. The object is stationary also as its distance from the time axis is not increasing.
If distance is not changing, but time is, then the object is at rest, or, the observer is moving at the same speed, and direction, as the object
lies
That it isn't moving.
That it isn't moving.
That it isn't moving.
That it isn't moving.
constant acceleration,
constant because it is a straight line, and acceleration because the line is inclined (there is change in velocity)
It is accelearting at a constant rate.
Acceleration is 0.
That it isn't moving.
If the line is parallel to the time axis, this means that the distance is not changing, so the object is not moving.
-- The distance/time graph for an object in uniform motion is a straight line,which may be sloped.-- The distance/time graph for an object in non-uniform motion may be a linethat isn't straight. But even if the graph is a straight line, that's not enoughto guarantee that the object's motion is uniform ... the distance/time graphreveals the object's speed, but not the direction of its motion.
Seems to me that either of the following could settle that issue: Necessary and sufficient: -- The object is in motion AND there exists a point from which the distance to the object is constant. Sufficient but not necessary: -- The component of the object's position that is parallel to some straight line is proportional to the cosine of (time + a constant).
the distance time graph will show a linear or a straight line
it is motion
object is at rest
If the line is parallel to the time axis, this means that the distance is not changing, so the object is not moving.
-- The distance/time graph for an object in uniform motion is a straight line,which may be sloped.-- The distance/time graph for an object in non-uniform motion may be a linethat isn't straight. But even if the graph is a straight line, that's not enoughto guarantee that the object's motion is uniform ... the distance/time graphreveals the object's speed, but not the direction of its motion.
Seems to me that either of the following could settle that issue: Necessary and sufficient: -- The object is in motion AND there exists a point from which the distance to the object is constant. Sufficient but not necessary: -- The component of the object's position that is parallel to some straight line is proportional to the cosine of (time + a constant).
That the object is moving at a constant velocity
distance = speed x time the speed is the slope of the line which if parallel to X axis is zero - that means speed = 0 and distance is not changing with time, so the object is at rest ( not moving) relative to the observer
the distance time graph will show a linear or a straight line
the distance time graph will show a linear or a straight line
The constant acceleration
the slope would be speed.
it is motion
If an object moving along a straight line,path,track etc.It,s motion is said to be straight line motion