A car covers at a constant speed of and then another at

PHYSICS · Subjective · GCSE · Physics · Forces · Forces

Problem

A car covers 60 km60\,\text{km} at a constant speed of 40 km/h40\,\text{km/h} and then another 40 km40\,\text{km} at 80 km/h80\,\text{km/h}. Calculate its average speed for the entire journey.

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