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प्रश्न
What is the difference between distance travelled by a body and its displacement ? Explain with the
help of a diagram.
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उत्तर
| Distance | Displacement |
| 1.Distance has only magnitude, with no specified direction. | 1.Displacement has magnitude as well as direction. |
| 2.It is a scalar quantity. | 2.It is a vector quantity. |
| 3.Two different distances can be added directly. | 3.We have to follow the vector addition method to add displacements. |
One difference in diagrammatic form is as follows:
Here the curved line is the distance traveled and the straight line is the magnitude of the displacement.
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संबंधित प्रश्न
If the displacement of an object is proportional to the square of time, then the object is moving with :
A ball moves on a smooth floor in a straight line with uniform velocity 10 m s-1 for 6 s. At t = 6 s, the ball hits a wall and comes back along the same line to the starting point with the same speed. Draw the velocity-time graph and use it to find the total distance travelled by the ball and its displacement.
Figure shows the velocity-time graph of a particle moving in a straight line.
(i) State the nature of motion of particle.
(ii) Find the displacement of particle at t = 6 s.
(iii) Does the particle change its direction of motion?
(iv) Compare the distance travelled by the particle from 0 to 4 s and from 4 s to 6 s.
(v) Find the acceleration from 0 to 4 s and retardation from 4 s to 6 s.
Define Displacement.
A car covers 90 km in `1 1/2` hours towards east. Calculate
- displacement of car,
- its velocity in (a) kmh−1 (b) ms−1.
Ashok starts from his house and travels 3 km to reach his school. On finding the school gates closed, he returns to his house. What is?
The displacement of Ashok
Which of the following is correct?
Write a note on the following:
knot
An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height of 100 m. What is the difference in their heights after 2s if both the objects drop with the same accelerations? How does the difference in heights vary with time?
Using the following data, draw time - displacement graph for a moving object:
| Time (s) | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| Displacement (m) | 0 | 2 | 4 | 4 | 4 | 6 | 4 | 2 | 0 |
Use this graph to find average velocity for the first 4 s, for the next 4 s and for the last 6 s.
