Question

Mary walked north from her home to Sheila's home, which is 4.0 kilometers away. Then she turned right and walked another 3.0 kilometers to the supermarket, which is 5.0 kilometers from her own home. She walked the total distance in 1.5 hours. What were her average speed and average velocity?

Answer 1

I always medal

Answer 2

the total distance wlaked is 4km + 3km = 7km
she made it in 1.5hours, you can get the average speed using:
\[s=\frac{d}{t}\]
with:
\(d\):the total distance
\(t\):the total time

find that first, then think what the average velocity should be :)