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प्रश्न
Clarify the difference.
Distance and displacement
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उत्तर
| Distance | Displacement |
| It is defined as the length of the actual path travelled by an object in motion. | It is defined as the shortest distance between the starting and finishing points. |
| It is a scalar quantity. | It is a vector quantity. |
| The values of distance are always positive. | The values of displacement can be positive, negative or zero. |
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संबंधित प्रश्न
Under what conditions can a body travel a certain distance and yet its resultant displacement be zero ?
Fill in the following blank with suitable word :
Displacement is a…………………… quantity whereas distance is a………………………….
An ant travels a distance of 8 cm from P to Q and then moves a distance of 6 cm at right angles to PQ. Find its resultant displacement.
Differentiate between distance and displacement.
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 body at rest is made to fall from the top of a tower. Its displacement at different instants is given in the following table:
| Time (in s) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 |
| Displacement (in m) | 0.05 | 0.20 | 0.45 | 0.80 | 1.25 | 1.80 |
Draw a displacement-time graph and state whether the motion is uniform or non-uniform?
A body starts from rest with uniform acceleration 2 m s-2. Find the distance covered by the body in 2 s.
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.
Write two differences between distance and 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:
`(3/4)` th of a revolution
Ashok starts from his house and travels 3 km to reach his school. On finding the school gates closed, he returns to his house. What is?
The displacement of Ashok
An object is thrown vertically upwards. It rises upto a height H and then returns to its initial position. Calculate
The total distance traveled by the object
A car travels at a uniform speed of 42 km/h. In 10 minutes, how much distance would it cover?
The figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
Calculate the distance travelled in the last 40 h.
Give one example where the displacement is zero but the distance travelled is not zero.
Give some examples for vector quantity.
Obtain a relation for the distance travelled by an object moving with uniform acceleration in the interval between 4th and 5th seconds.
Choose the correct option.
Displacement magnitude can be greater than the distance traveled by the object.
