# Example 8.1 - Chapter 8 Class 9 - Motion

Last updated at May 23, 2019 by Teachoo

Last updated at May 23, 2019 by Teachoo

Transcript

Example 8.1 An object travels 16 m in 4 s and then another 16 m in 2 s. What is the average speed of the object? We know that Average speed = (๐๐๐ก๐๐ ๐๐๐ ๐ก๐๐๐๐)/(๐๐๐ก๐๐ ๐ก๐๐๐) Distance travelled in 4 seconds = 16 m Distance travelled in 2 seconds = 16 m Total distance travelled = 16 + 16 = 32 m Total time taken = 4 + 2 = 6 s Thus, Average speed = (๐๐๐ก๐๐ ๐๐๐ ๐ก๐๐๐๐)/(๐๐๐ก๐๐ ๐ก๐๐๐) = 32/6 = 5.33 m/s

Examples from NCERT Book

Class 9

Chapter 8 Class 9 - Motion

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.