A runner covers in

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

A runner covers 500 m500\,\text{m} in 2 min2\,\text{min}, then 1.2 km1.2\,\text{km} in 3 min3\,\text{min}, and finally 300 m300\,\text{m} in 1 min1\,\text{min}. Determine the runner’s average speed in m/s\text{m/s} for the entire run. (a) 3.3 m/s3.3\,\text{m/s} (b) 9.1 m/s9.1\,\text{m/s} (c) 5.6 m/s5.6\,\text{m/s} (d) 5.3 m/s5.3\,\text{m/s}

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