Question

A person walked 30km towards north then he took left turn 15km and he again took left turn 30km find distance and displacement
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Answer 1

distance=75 km displacement=15km

as distance is total path covered. As he walk 30km then he walk 15km and at last he walk 30km . so total distance is 30km + 30km + 15km= 75 km

Now ,

displacement is shortest path between two point . so from where he start walking and where he stop walking the displacement between the point is 15km. OC is the displacement.