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प्रश्न
Compare speed and velocity
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उत्तर
| S.No. | Speed | Velocity |
| 1. | The rate of change of distance | The rate of change of displacement |
| 2. | Scalar quantity | Vector quantity |
| 3. | `"Speed" = "Distance travelled"/"time taken "` | `"Velocity" = "Displacement" /"time taken"` |
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संबंधित प्रश्न
Define Speed.
Convert 20 m/s into km/hr.
Arrange the following speeds in the increasing order:
(i) A bicycle moving with a speed of 36 km/h.
(ii) A car moving with a speed of 2 km/min.
(iii) An athlete running with a speed of 7 m/s.
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 speed for the whole journey?
A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
In figure the position of a body times is shown . Calculate the speed of the body as it moves from 0 to A, A to B, B to C and i ts average speed .
A bus travels 54 km in 90 minutes. The speed of the bus is ______.
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
Distinguish between Speed and velocity.
