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प्रश्न
How is the distance related with time for motion under uniform acceleration such as the motion of a freely falling body?
उत्तर
For motion under uniform acceleration, such as the motion of a freely falling body, distance is directly proportion to the square of the time.
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संबंधित प्रश्न
Explain the following concept in your own words with everyday examples:
Distance
A motorbike running at 90 kmh−1, is slowed down to 54 kmh−1 by the application of brakes, over a distance of 40 m. If the brakes are applied with the same force, calculate
- total time in which bike comes to rest
- total distance travelled by bike.
A motor car slows down from 72 kmh−1 to 36 kmh−1 over a distance of 25 m. If the brakes are applied with the same force
calculate
- total time in which car comes to rest
- distance travelled by it.
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.
Which of the following figures represent uniform motion of a moving object correctly?
Displacement / Time : Velocity :: Speed / Time : ______.
State whether true or false. If false, correct the statement.
Distance covered by a particle never becomes zero but displacement becomes zero.
The SI unit of displacement is ______.
Give one example where the displacement is zero but the distance travelled is not zero.
Displacement can be zero but distance never.
