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## Homework Statement

A car travels to home from school. For the first 100km it travels 100km/h and for the rest of trip travels 50km/hr and completes the trip in 1 hr and 42 min. Calculate the avg speed for the ENTIRE trip.

## Homework Equations

Average Speed=∑i|d/Δttotal

## The Attempt at a Solution

It's asking for the entire trip so we assume it comes back home.

In this case is avg speed = 0 because the displacement was 0.

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