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- Speed is found by comparing distances moved in unit time.
- The unit time may be one second, one minute, or one hour.
- Speed is the distance covered by an object in unit time.
How to Calculate Speed
Speed is the total distance covered divided by the total time taken.
$$\text{Speed} = \frac{\text{Total distance covered}}{\text{Total time taken}}$$
📋 NCERT Question 2
A runner completes 400 metres in 50 seconds. Another runner completes the same distance in 45 seconds. Who has a greater speed and by how much?
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