What is the total displacement of a dog that runs north 80 meters to chase a ball, returns to its master, and then runs south 20 meters?

60m

Explanation:

Displacement is defined as the distance covered by a body or object in a specified direction.

If the dog runs 80m northwards i.e +80m since it runs along the positive y direction.

Also the dog returns to its master 20m in the south direction i.e -20m in the negative y direction.

Its total displacement will be +80-20 = 60m

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.