This means your velocity is decreasing with time, or in other words, the object is slowing down.
If you are analyzing speed with respect to time, then you are decelerating.
Acceleration , which is change of velocity over time.
An upward sloping straight line indicates that the object being studied is moving away from the origin and that the component of its velocity in the radial direction is a constant. A downward sloping line indicates it is moving towards the origin. However, neither line says anything about the transverse component of its motion.
A velocity time graph is still a velocity time graph - no matter the degree of detail that you look at it.
If an x-t graph is a position-time graph, velocity is the slope of the line on the graph.
An upward sloping diagonal line on a velocity vs. time graph represents constant acceleration. The steeper the slope, the greater the acceleration.
Deceleration can be symbolized as a negative value in an equation or graph, indicating a decrease in speed or velocity. It can also be represented by a downward sloping line on a velocity-time graph, showing a decrease in velocity over time.
False. A horizontal line on a velocity vs. time graph indicates constant velocity, not constant acceleration. Positive acceleration would be represented by a diagonal line sloping upwards on a velocity vs. time graph.
An downward sloping diagonal line on a position vs. time graph indicates constant negative acceleration or deceleration. This means that the object is moving in the negative direction and slowing down over time.
It means that either the distance is measured from the starting-line and the object is moving forward, or else the distance is measured from the finish-line and the object is moving backwards, because the distance is growing as time goes on. If the upward sloping diagonal line is straight, it means the speed is constant. (not velocity)
The graph of a ball thrown vertically upward and coming downward without air resistance would be symmetrical around the peak. The velocity would be positive during the upward motion (accelerating upwards and then slowing down until it momentarily stops at the peak) and negative during the downward motion (accelerating downwards). The acceleration due to gravity would cause the velocity to increase in the downward direction until it reaches the initial velocity at the start.
A straight line sloping upwards on a position-time graph indicates that the object is moving with a constant positive velocity. The slope of the line represents the velocity of the object.
Slowing down or decelerating
If you are analyzing speed with respect to time, then you are decelerating.
Acceleration , which is change of velocity over time.
The velocity versus time graph would be a straight line sloping downward. The velocity would start at 0 when the object is released, then increase linearly in the negative direction as it accelerates due to gravity.
An upward sloping straight line indicates that the object being studied is moving away from the origin and that the component of its velocity in the radial direction is a constant. A downward sloping line indicates it is moving towards the origin. However, neither line says anything about the transverse component of its motion.