Is displacement more like the length of a rope that is pulled tight or the length of a coiled rope? Explain.

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Accepted Answer

The length of a coiled rope is the distance between the ends.The length of a rope that's pulled tight is analogous to displacement."Displacement" is the straight-line distance between the start-point and end-point, regardless of the route followed between them, (PLUS the direction from start to finish).Notice that if a student wakes up in the morning, gets out of bed, brushes his teeth, eats breakfast, goes to school, has soccer practice after school, goes home for dinner, hangs out at a friend's house after dinner, comes back home and does some homework, then brushes his teeth and goes to bed, the student's displacement for the whole day is zero .  Displacement is the straight-line distance between the start-point and end-point, regardless of the route followed between them.

Suggested Answer

more like the length of a taut rope, because displacement is the length of the straight line between A and Bfor example, if i run a lap on a circular track, my displacement would be 0 because i end up at the same spot i started, while my distance would be greater than 0

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