What is displacement ? Give some example of present displacement ?

While john is traveling along a straight interstate highway, he notices that the mile marker reads 252km. He travels until he reaches the 149km marker and then retraces his path to the 168km marker. What is his dispacement? How far has he traveled?

When calculating for final displacement, what is the difference between these two equations? 1. x(f) = x(o) + V(o)t + at2 / 2 2. x(f) = x(o) + (v+v(o)) / 2 x(f) = final displacement, x(o) = original displacement, v(o) = original velocity.

A picture of a displacement that demonstrates its definition lebeled with appropriate mathematical symbols :) help I don't know what to put

Just done crash cart experiment with ticker tape. Question reads, "Assuming that the acceleration is constant, then so long as we use the same time interval in each case, displacement will be proportional to acceleration. Explain why we can say that displacement is proportional to acceleration...