A student walks east to a shop and then immediately walks back to the starting point…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A student walks 100 m100\,\text{m} east to a shop and then immediately walks 100 m100\,\text{m} back to the starting point in the same amount of time. Which statement is correct about the magnitudes of the student’s average velocity and average speed for the entire trip? (a) Average velocity equals average speed. (b) Average velocity is zero but average speed is non-zero. (c) Average velocity is zero and average speed is zero. (d) Average velocity is non-zero but average speed is zero.

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