Physics

Physics

Problem

A cyclist rides 3 km due east and then 2 km due west in a total time of 30 min. Which statement correctly compares the average speed vavgv_{\text{avg}} and the magnitude of the average velocity ∣vˉ∣|\bar v| for the trip? a) vavg=∣vˉ∣v_{\text{avg}} = |\bar v| b) vavg>∣vˉ∣v_{\text{avg}} > |\bar v| c) vavg<∣vˉ∣v_{\text{avg}} < |\bar v| d) Comparison impossible without knowing individual speeds

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