julianna walked 45 meters, 45 meters south , and 45 meters north. what is her resultant displacement
my answer was 45 meters west. is this answer
correct
If your question was:
"julianna walked 45 meters WEST, 45 meters south , and 45 meters north"
then you are correct!
No, your answer is not correct. The correct answer can be determined by considering the direction and magnitude of each movement.
Let's break down the question and try to find the resultant displacement step by step:
1. Julianna walked 45 meters. This movement doesn't provide any information about direction, so we can assume it is in a straight line. Let's call this movement "A" and represent it as 45 meters east.
2. Julianna then walked 45 meters south. This movement implies a change in direction, so we need to take it into account. Let's call this movement "B" and represent it as 45 meters south.
3. Finally, Julianna walked 45 meters north. Again, this movement implies a change in direction. Let's call this movement "C" and represent it as 45 meters north.
Now, to find the resultant displacement, we need to add the vectors A, B, and C. To do so, we can draw a diagram or use trigonometry.
However, in this case, since the magnitudes of all three vectors are the same (45 meters), and the directions are opposite for B and C, they cancel each other out. Consequently, the resultant displacement is solely determined by vector A.
Therefore, the answer is 45 meters east, not west.