A train covers the first at and the next at

PHYSICS · Numerical · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A train covers the first 100 km100\ \text{km} at 50 km h−150\ \text{km h}^{-1} and the next 100 km100\ \text{km} at 100 km h−1100\ \text{km h}^{-1}. Find the average speed of the train.

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