Which one of the following gives the definition of average speed for a journey?

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

Problem

Which one of the following gives the definition of average speed for a journey? (a) Total displacementTotal time taken\dfrac{\text{Total displacement}}{\text{Total time taken}} (b) u+v2\dfrac{u+v}{2} (c) Total distance travelledTotal time taken\dfrac{\text{Total distance travelled}}{\text{Total time taken}} (d) ∑i=1nvin  (for equal time intervals)\dfrac{\sum_{i=1}^{n} v_i}{n}\,\, (\text{for equal time intervals})

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