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प्रश्न
Define displacement. State its unit.
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उत्तर
The shortest distance from the initial to the final position of the body is called the magnitude of displacement. It is in the direction from the initial position to the final position.
Its SI unit is metre (m).
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संबंधित प्रश्न
A body travels a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East.
What is the resultant displacement ?
If the displacement of an object is proportional to the square of time, then the object is moving with :
State how the velocity-time graph can be used to find The distance travelled by the body in a given time
Draw a velocity-time graph for a body moving with an initial velocity u and uniform acceleration a. Use this graph to find the distance travelled by the body in time t.
Draw displacement – time graph for the following situation:
When a body is moving with uniform velocity.
From the displacement – time graph shown given below calculate:
- Average velocity in the first three seconds.
- Displacement from the initial position at the end of 13 s.
- Time after which the body is at the initial position,
- Average velocity after 8 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.
Displacement / Time : Velocity :: Speed / Time : ______.
Distinguish distance and displacement.
Give one example where the displacement is zero but the distance travelled is not zero.
