In ground frame

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

Problem

In ground frame SS, a train moves from x1=+4 mx_1 = +4\,\text{m} to x2=−6 mx_2 = -6\,\text{m}. Frame S′S' has its origin 8 m8\,\text{m} to the right of the origin of SS and shares the same positive xx-direction. What is the displacement of the train as measured in frame S′S'? (a) +10 m+10\,\text{m} (b) −14 m-14\,\text{m} (c) −10 m-10\,\text{m} (d) +2 m+2\,\text{m}

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