A motorcyclist drives from A to B with a uniform speed of 30 km h⁻¹ and returns back with a speed of 20 km h⁻¹. Find its average speed.

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TextAverage Speed and Instantaneous SpeedNCERT Exemplar

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A motorcyclist drives from point A to point B with a uniform speed of 30 km h⁻¹ and returns back to point A with a uniform speed of 20 km h⁻¹. Find the average speed of the motorcyclist.

TextSpeed and Its TypesAverage Speed and Instantaneous Speed

Using following data, draw time - displacement graph for a moving object: | Time (s) | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | |---|---|---|---|---|---|---|---|---|---| | Displacement (m) | 0 | 2 | 4 | 4 | 4 | 6 | 4 | 2 | 0 | Use this graph to find average velocity for first 4 s, for next 4 s and for last 6 s.

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