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Grade 9Modern Physics

Rahul while going to school moves with the Avg. speed of 30km/h while coming back traffic is less and Avg. speed become 40km/h . Calculate overall velocity.

Profile image of Punjabi Music
7 Years agoGrade 9
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1 Answer

Profile image of Khimraj
7 Years ago
If equal distance are covered with speeds v1 and v2 then average distance=2v1v2/v1+v2
                           = 2x30x40/70
                            =240/7km/hr

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