Question

Amy walks 3 m from her desk to the teacher's desk. From the teacher's desk, she then walks 4 m in the opposite direction to the classroom door. Which table correctly represents both the distance and displacement of Amy's motion?

Answer 1

I don't know what the tables you have look like but her displacement would be -1m

Answer 2

distance = 7 m

displacement = 5 m

Step-by-step explanation:

distance moved by Amy is the total path length that she moved

so it is given as

`d = d_1 + d_2`

here we have

`d_1 = 3 m`

`d_2 = 4 m`

so we have

`d = 7 m`

now since both the distance that she moved is perpendicular to each other so total displacement of Amy is given as

`d = √(d_1^2 + d_2^2)`

`d = √(3^2 + 4^2) = 5 m`