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प्रश्न
In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?
विकल्प
if the car is moving on straight road
if the car is moving on circular road
if the pendulum is moving to and fro
if a planet is moving around the sun
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उत्तर
if the car is moving on straight road
The magnitude of displacement is equal to the distance travelled by a body when it travels in a straight line.
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संबंधित प्रश्न
Which of the following is true for displacement?
- It cannot be zero.
- Its magnitude is greater than the distance travelled by the object.
A train takes 3 h to travel from Agra to Delhi with a uniform speed of 65 km h-1. Find the distance between the two cities.
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
A car starting from rest accelerates uniformly to acquire a speed 20 km h-1 in 30 min. The distance travelled by a car in this time interval will be _____________
Can you suggest the kind of motion of a body from the following distance – time graph?
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?
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?
State whether true or false. If false, correct the statement.
Distance covered by a particle never becomes zero but displacement becomes zero.
Exercise Problems.
An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 m and 20 s?
Give one example where the displacement is zero but the distance travelled is not zero.
