Question

Mark and Sofia walk together down a long, straight road. They walk without stopping for 4 miles. At this point Sofia says their displacement during the trip must have been 4 miles; Mark says their current position must be 4 miles. Who, if either, is correct?a)Markb)Mark, only if their starting point is the origin of a coordinate systemc)Sofia, only if their starting point is the origin of a coordinate systemd)Sofia

Answer 1

d) Sofia.

Step-by-step explanation:

If they walked down a straight road, their displacement will be 4 miles. However, their position depends on the origin of a coordinate system which could be located anywhere. If the origin of the coordinate system was at the starting point of their walk, then and only then, you can say that their position is also 4 miles.