Ugh i remember doing this last year lol so i’m not quite sure but all i remember is a displacement is the shortest distance from one point to another

Because the tree is a reference and from that you can figure out how far the object is by using the tree as a reference.

LOL im just winging this so don’t get mad if it’s wroung

displacement means the amount of movement of an object measured in a particular direction; if an object traveled at a distance of 150 m, but came back at its reference point/starting point, then there is 0 displacement. (its like walking for 150 meters in a circle wherein you stopped at the exact place where you started off… hope I’m making sense..)

you can determine if an object has moved by measuring the distance between the object and the tree and compare the distances you gathered from the 2 photos. If the distance is the same, then the object has not been moved.

: )

dx (displacement of an object) = X2 – X1

If an object travels from (for example) X1 and it goes back to that point although it has traveled some distances but the displacement becomes zero,

dictionary meaning:

reference point

noun

an indicator that orients you generally; “it is used as a reference for comparing the heating and the electrical energy involved”