Question

what is a displacement

Answer 1

the action of moving something from its place or position.

"vertical displacement of the shoreline"

2.

the occupation by a submerged body or part of a body of a volume which would otherwise be occupied by a fluid.

And it is the shortest pathway

Answer 2

displacement is a shortest distance between inital and final position it's a vector quantity it can be positive negative or zero displacement is always less than or equal to the distance traveled.