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## Homework Statement

As we know the Average speed = Total distance / Total time but why in the case below

Distance traveled = s₁ + s₂ + s₃ and total time taken = s₁/v₁ + s₂/v₂ + s₃/v₃ How is it possible? so, altogether

Vav = s₁ + s₂ + s₃ / ( s₁/v₁ + s₂/v₂ + s₃/v₃)

## Homework Equations

## The Attempt at a Solution

I only know (Average speed = Total distance / Total time)