Question

Can some one help me with this

Answer 1

2. 0, She walked a mile and then walked home, which made her total displacement in the end 0

3. A, By driving west from the starting point.  I had to make a graph in ms paint to visualize it better, which i attached.

4. 4 meters.  The ball rolled up the hill 5 meters, then down 9 meters.  Simply subtract the two and you have -4 meters.  The question asks for the overall displacement of the ball, so the negative doesn't count.

I hope these answers are what you're looking for :)