If someone told you that they traveled 50 km east, are they describing the distance they traveled or their displacement? How do you know? *

they are describing their displacement since displacement is nothing but distance along with the direction of motion

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

force tends to be low and long diustance masses are high