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प्रश्न
Can displacement-time sketch be parallel to the displacement axis? Give a reason to your answer.
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उत्तर
The displacement-time graph can never be parallel to the displacement axis because such a line would mean that the distance covered by the body in a certain direction increases without any increase in time, which is not possible.
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संबंधित प्रश्न
Is displacement a scalar quantity?
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.
A car covers 90 km in `1 1/2` hours towards east. Calculate
- displacement of car,
- its velocity in (a) kmh−1 (b) ms−1.
Draw displacement – time graph for the following situation:
When a body is moving with uniform velocity.
Draw displacement – time graph for the following situation:
When a body is moving with variable velocity.
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.
Can distance covered by a body be less than the magnitude of its displacement?
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 distance traveled by Ashok.
A satellite makes a complete round along its circular orbit. What is its displacement?
Give some examples for vector quantity.
