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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
Is displacement a scalar quantity ?
A body travels a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East.
What is the total distance travelled ?
Can displacement be zero even if the distance is not zero? Give one example to explain your answer.
A car travels a distance 100 m with constant acceleration and average velocity of 20 ms-1. The final velocity acquired by the car is 25 ms-1.
Find
(i) The initial velocity.
(ii) Acceleration of the car.
Calculate the distance and displacement in the following case:
A body moves along a circular path of radius r. When it completes three complete rounds, what is the ratio of distance covered to its displacement?
An object covers a distance of S meters in t seconds as follows :
| S (meters) | 0 | 8 | 20 | 20 | 16 | 10 | 0 |
| t (Seconds) | 80 | 2 | 5 | 10 | 12 | 15 | 10 |
Plot a graph, taking t on X-axis and S on Y-axis. Determine the velocity of the object at time
(i) 6 s, and
(ii) 14 s.
Write a note on the following:
Nautical mile
Slope of a velocity-time graph gives
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?
