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प्रश्न
Match the following.
| 1. | Displacement | Knot |
| 2. | Light travelling through vacuum | Geometric centre |
| 3. | Speed of ship | Metre |
| 4. | Centre of gravity of geometrical shaped objects | Larger base area |
| 5. | Stability | Uniform velocity |
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उत्तर
| 1. | Displacement | Metre |
| 2. | Light travelling through vacuum | Uniform velocity |
| 3. | Speed of ship | Knot |
| 4. | Centre of gravity of geometrical shaped objects | Larger base area |
| 5. | Stability | Geometric centre |
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संबंधित प्रश्न
A boy walks from his classroom to the bookshop along a straight corridor towards North. He covers a distance of 20 m in 25 seconds to reach the bookshop. After buying a book, he travels the same distance in the same time to reach back in the classroom. Find (a) average speed, and (b) average velocity, of the boy.
What can you say about the nature of motion of a body if its displacement-time graph is A straight line inclined to the time axis with an obtuse angle?
Give an example of a body which covers a certain distance, but its displacement is zero.
Can you suggest the kind of motion of a body from the following distance – time graph?
Show the difference between distance and displacement with the help of a diagram.
Can a body have negative 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:
Half a revolution
Give the name of the physical quantity that corresponds to the rate of change of displacement.
The table below shows the distance travelled by two vehicles A and B during each second:
| Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Distance travelled by A (m) | 0 | 20 | 80 | 180 | 240 | 300 | 360 | 420 |
| Distance travelled by B (m) | 0 | 10 | 40 | 90 | 160 | 250 | 360 | 490 |
Which vehicle is ahead at the end of 7th second and by how much?
Choose the correct option.
