How do i explain the laws of motion when i am walking down the street?

Well one way that you could explain is well by just walking and just say that one of the laws is an object in motion tends to stay in motion. The you could punch the palm of your hand ad then say that and object will stop if hit with an unmeasured force. You could also drag your feet on the sidewalk and talk about how friction stops an object from moving.

I hope that this was helpful to you.

10 neutrons is the answer