At a ball is east of its starting point

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

Problem

At t=2 st = 2\,\text{s} a ball is 10 m10\,\text{m} east of its starting point. At t=6 st = 6\,\text{s} it is −2 m-2\,\text{m} (i.e. 2 m2\,\text{m} west of the start). Calculate the average velocity of the ball during this interval. (a) +3 m/s+3\,\text{m/s} (b) −2 m/s-2\,\text{m/s} (c) −3 m/s-3\,\text{m/s} (d) −6 m/s-6\,\text{m/s}

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