What is her average speed during this hour

Reference no: EM13525824

A person walks north for 20 minutes at a speed of 1.2 m/s. She then has lunch, while resting for 10 minutes. She continues to walk north for another 30 minutes at 1.2 m/s.

What is her average speed in m/s during this hour?

Reference no: EM13525824

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