Intext activity VI — task. Science CBSE, Class 9.

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Measure the time it takes you to walk from your house to your bus stop or the school. If you consider that your average walking speed is \(4\ km\ h^{–1}\), estimate the distance of the bus stop or school from your house.

The formula to calculate the average speed,

\(=\ \frac{Total\ displacement}{Total\ time\ taken}\)
\(=\ {Total\ displacement} \times {Total\ time\ taken}\)
\(=\ \frac{Total\ distance\ travelled}{Total\ time\ taken}\)
\(=\ {Total\ distance\ travelled} \times {Total\ time\ taken}\)

For example, If you takes \(15\ minutes\) to reach school,

Distance of the school from your house \(=\) \(km\)

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41. Intext activity VI

Exercise condition: