velocity is nothing but speed of a body in the given direction.
suppose if body is moving with constant velocity then VT graph will be parallel to
the X -axis, if not then the VT graph is not parallel to the X-axis it means then object is moving with different velocity or it has its dierection or both velocity and aswell as direction.
Yes. If the graph is zero everywhere, then the object is stationary.
If the object is not stationary, then the graph must depart from zero.
Yes, the object is stationary when the velocity is zero, the point or points where the graph crosses the horizontal time axis
Well, it's hard to graph a velocity-time graph in the first place, since velocity is a vector. I assume you mean speed-time graph. In that case, when you are moving faster, the velocity will simply be higher up in the graph.
The velocity will be constant when it remains parallel to the time scale.
The velocity has changed from positive to negative, or vice-versa.
if the velocity is positive to start with it changes direction when the velocity is less than zero; that is, when it is negative.
If the line is a horizontal line coincident with the x (time) axis and at y = 0 (velocity) axis it is stationary
You're looking at one specific velocity/time graph that we can't see. From your description, we can tell that the object whose motion is described by that graph is moving at a constant rate of speed ... which is exactly what you just said while looking at the graph.
No. It will tell you WHEN but not where.
That slope is the 'speed' of the motion. If the slope is changing, then the speed is changing. That's 'accelerated' motion. (It doesn't matter whether the speed is growing or shrinking. It's still 'accelerated' motion. 'Acceleration' does NOT mean 'speeding up'.)
The distance versus time graph shows the position of the object. The slope of the line shows the velocity of the object. The velocity is the direction and speed of an object. If your slope has a positive slant that means you are going in a positive direction. If the slope has a negative slant your object is going in a negative direction. If your slope is zero (a horizontal line) that means your object has stopped and is about to change directions. In case you didnt know a positive slant looks like this on a graph.... / a negative slant looks like this on a graph.... \ postive is like sloping up a hill negative is like falling down the hill
If the position is graphed vs time, then the slope (rate of change of position with respect to time) will be the same (parallel).
You're looking at one specific velocity/time graph that we can't see. From your description, we can tell that the object whose motion is described by that graph is moving at a constant rate of speed ... which is exactly what you just said while looking at the graph.
If the curve is horizontal, then the speed is constant. If that horizontal graph lies on the x-axis, then the constant speed is zero, and the object is stationary.
It tells you that the velocity of the body is not constant. There is acceleration or deceleration.
The x-t graph can't tell you anything about direction, so you can only make observations regarding speed, not velocity. For constant speed, the x-t graph is a straight line. The slope of the line is numerically equal to the constant speed.
No. It will tell you WHEN but not where.
The straight horizontal line would indicate constant speed.(NOT constant velocity. The velocity could very well be changing, but the graphdoesn't tell you anything about the direction of the motion, only that the speedis constant.)
velocity
Distance covered at a given time.
The slope of each point on the line on the graph is the rate of change at that point. If the graph is a straight line, then its slope is constant. If the graph is a curved line, then its slope changes.
How the speed of something changes over time.
Very simply . . . you're not likely to ever see a velocity graph. At least notuntil you get into advanced engineering or science.Velocity is speed and its direction . . . more information than can be displayedon a simple graph.
The slope of the line of a distance versus time graph is the velocity of the object. If this is a constant, in other words the graph is a straight line, the object is not changing its velocity and so is not accelerating. If the object is accelerating, the velocity of the object will be changing, thus the graph will not be a straight line, but a curve - the amount of curvature (and direction) tells you how much the object is accelerating (and in what direction - velocity and acceleration are vector quantities with both magnitude and direction).