Object P moves with a constant velocity of

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

Problem

Object P moves with a constant velocity of 5 m s−15\,\text{m s}^{-1}, while object Q starts from rest with a constant acceleration of 2 m s−22\,\text{m s}^{-2}. Both start simultaneously from the same point along a straight track. After how many seconds will they have travelled equal displacements from the starting point? (a) 2.5 s2.5\,\text{s} (b) 10 s10\,\text{s} (c) 5 s5\,\text{s} (d) 5 s  (≈2.24 s)\sqrt{5}\,\text{s}\;(\approx 2.24\,\text{s})

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