Physics

Physics

Problem

A boy starts from his house, walks 70 m70\,\text{m} north, then 30 m30\,\text{m} south and finally 40 m40\,\text{m} south. Which statement is correct? a) Distance =100 m, Displacement =40 m north\text{Distance }=100\,\text{m},\ \text{Displacement }=40\,\text{m north} b) Distance =0 m, Displacement =0 m\text{Distance }=0\,\text{m},\ \text{Displacement }=0\,\text{m} c) Distance =140 m, Displacement =0 m\text{Distance }=140\,\text{m},\ \text{Displacement }=0\,\text{m} d) Distance =140 m, Displacement =140 m north\text{Distance }=140\,\text{m},\ \text{Displacement }=140\,\text{m north}

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