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प्रश्न
Explain the following concept in your own words with everyday examples:
Distance
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उत्तर
It is the actual path length covered by an object during its motion. It is a scalar quantity.
For example, when we go to a mall for shopping from our house and then return to the house, the distance travelled by us would be twice the distance between our house and the mall.
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.
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
What can you say about the nature of motion of a body if its displacement-time graph is A straight line parallel to the time axis?
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.
A body is moving along a circular path of radius r. What will be the distance and displacement of the body when it completes:
Two full revolutions
A particle moves along a circular path. How many times does it change its direction in two complete rounds?
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 moving with uniform velocity?
State whether true or false. If false, correct the statement.
Distance covered by a particle never becomes zero but displacement becomes zero.
______ is the length of the actual path covered by a body.
If the displacement-time graph of a particle is parallel to the time axis, the velocity of the particle is ______.
