What is net displacement vector? i just started ap physics 1.

You have more than 1 vector. When you add them all together as vectors, the net displacement vector is a vector drawn from the arrowhead of the last vector to the non-arrowhead of the first vector. The other responder gave a good description as well. Between us, you have a pretty good definition of what a net displacement vector is.

i would say the answer is food.

hope this !

0.11 m/s and 0.28 m/s should be correct