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प्रश्न
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts AB, BC and CD.
State how is the distance travelled in any part determined from this graph .
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उत्तर
Distance travelled in any part of the graph can be determined by finding the area enclosed by the graph in that part with the time axis.
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संबंधित प्रश्न
What information about the motion of a body are obtained from the displacement-time graph?
The following table gives the displacement of a car at different instants of time.
| Time (s) | 0 | 1 | 2 | 3 | 4 |
| Displacement (m) | 0 | 5 | 10 | 15 | 20 |
- Draw the displacement-time sketch and find the average velocity of the car.
- What will be the displacement of the car at (i) 2.5 s and (ii) 4.5 s?
A racehorse runs straight towards the north and covers 540 m in one minute. Calculate
- displacement of the horse,
- its velocity in (a) ms−1 (b) kmh−1.
Can distance covered by a body be less than the magnitude of its displacement?
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Full revolution
Displacement / Time : Velocity :: Speed / Time : ______.
Slope of a velocity-time graph gives
If the displacement-time graph of a particle is parallel to the time axis, the velocity of the particle is ______.
Displacement is the ______ distance covered by a body.
Assertion: If the displacement of the body is zero, the distance covered by it may not be zero.
Reason: Displacement is a vector & distance is a scalar quantity.
