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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
An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 20 s?
Under what conditions can a body travel a certain distance and yet its resultant displacement be zero ?
A body is moving in a straight line and its displacement at various instants of time is given in the following table
| Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Displacement (m) | 2 | 6 | 12 | 12 | 12 | 18 | 22 | 24 |
Plot the displacement-time graph and calculate
(i) Total distance travelled in the interval 1 s to 5 s.
(ii) Average velocity in time interval 1 s to 5 s.
Figure (a) shows the velocity-time graph for the motion of a body. Use it to find the displacement of the body at t = 1 s, 2 s, 3 s and 4 s, then draw on Figure (b), the displacement-time graph for it.
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| (a) | (b) |
A body starts with an initial velocity of 10m s-1 and acceleration 5 m s-2. Find the distance covered by it in 5 s.
From the displacement – time graph shown given below calculate:
- Average velocity in the first three seconds.
- Displacement from the initial position at the end of 13 s.
- Time after which the body is at the initial position,
- Average velocity after 8 s.
Can a body have negative displacement?
Give some examples for vector quantity.
Slope of a velocity-time graph gives
Displacement magnitude can be greater than the distance traveled by the object.
