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प्रश्न
A quantity is measured to be -30 m/s. Is it speed or velocity?
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उत्तर
-30 m/s is speed.
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संबंधित प्रश्न
Suppose the two photographs, shown in Figure 1 and Figure 2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.

Figure 1 Vehicles moving in the same direction on a road

Figure 2 Position of vehicles shown in Figure 1 after some time
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Distinguish between Speed and velocity.
