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प्रश्न
Distinguish between speed and velocity.
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उत्तर
| Sr. No. | Speed | Velocity |
| 1. | Speed is the distance travelled by an object in unit time. | Velocity is the distance travlled by an object in unit time in a given direction. |
| 2. | Speed of a moving body can never be zero. | Velocity of a moving body will be zero is it returns to its original position. (i.e., when its displacement is zero.) |
| 3. | It is a scalar quantity. | It is a vector quantity. |
| 4. | Speed = `"Distance travalled"/"time taken"` | Velocity = `"Displacement"/"time taken"` |
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संबंधित प्रश्न
Explain the following concept in your own words with everyday examples:
Velocity
What are the SI units of velocity?
A body goes from P to Q with a uniform speed of u and immediately returns back to P at a uniform speed of v. what is the average velocity for the whole journey?
A stone is dropped from a certain height. Is its motion uniform or non-uniform?
The graph shows how the velocity of a scooter varies with time in 50 s. Interpret the graph.
Assertion: The Speedometer of a car or a motor-cycle measures its average speed.
Reason: Average velocity is equal to total displacement divided by total time taken.
A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80 km/h. Its average velocity during the whole journey is ______ and its average speed is ______.
A body moves with an initial velocity of 5ms-1 and accelerates at 2ms -2. Its velocity after 10s is ______.
If the velocity of the body decreases with time the acceleration is negative and the motion is called decelerated motion.
Distinguish between speed and velocity.
