In a distance-time graph, if the line is horizontal, then the object is:a)Acceleratingb)Speeding upc)At restd)Slowing downCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

When an object is at rest it will not be able to cover any distance . So for any object at rest the distance -time graph is horizontal to time axis

Answer

Udjeid wisywbzus zjsbduxnsiabx duskzen A. sucjenz ajizna B.sicnsixjsmu h js x Ckxidi ksnxks

Answer

Because the object is not moving

Answer

What are you doing

Answer

Understanding the Relationship between Distance and Time in a Graph

To understand why the correct answer is option 'C' (at rest), we need to have a clear understanding of the relationship between distance and time in a graph.

1. Distance-Time Graph:
A distance-time graph is a graphical representation that shows the relationship between the distance an object travels and the time it takes. The distance is usually plotted on the vertical axis (y-axis), while the time is plotted on the horizontal axis (x-axis).

2. Horizontal Line on a Distance-Time Graph:
When a line on a distance-time graph is horizontal, it means that the object is not changing its position over time. In other words, the object is not moving or is at rest.

Explanation of the Correct Answer 'C' (At Rest):

When the line on a distance-time graph is horizontal, it indicates that the object is at rest. This means that the object is not moving and its distance from the starting point remains constant for the given time interval.

Here's why:

1. Constant Distance:
A horizontal line on a distance-time graph represents a constant distance. This means that the object is not covering any additional distance as time progresses.

2. Zero Velocity:
Since the object is not covering any additional distance, its velocity (change in distance over time) is zero. Velocity is a measure of how fast an object's position changes with time. When the velocity is zero, it indicates that the object is not moving.

3. No Acceleration:
Acceleration is the rate of change of velocity. Since the object is at rest and not moving, its velocity is constant and equal to zero. Therefore, there is no change in velocity, and hence, no acceleration. Acceleration is only observed when there is a change in velocity.

Conclusion:

Based on the above explanation, when the line on a distance-time graph is horizontal, it indicates that the object is at rest. The object is not accelerating, speeding up, or slowing down as there is no change in its position over time.

Top Courses for Class 9View all

Science Class 9

Social Studies (SST) Class 9

Mathematics (Maths) Class 9

English Class 9

English Grammar Advanced

Top Courses for Class 9

Top Courses for Class 9

Related Content

Class 9 Study Material

Class 9 Subjects

Competitive Examinations for Class 9

NCERT Books

NCERT Solutions

Reference Books for Class 9

Other Popular Exams

Company