What are some examples of having no interactions affecting motion ?

Write a ten sentence paragraph inventing your own situation in which there are no interactions affecting motion. Be sure to describe whether objects are speeding up, slowing down, or have constant speed.



Please someone help ? Thanks (;What are some examples of having no interactions affecting motion ?Hey... all that is being asked is to describe balance of forces where dV = 0 = V - U, where U is initial speed and V is final.



How 'bout you and your butt, sitting there in that chair while you read this. Is its speed changing or is it just sitting there... literally. It's not changing; so your butt's change in speed is dV = 0 = V - U and V = U meaning whatever your butt started out to be going a few moments ago, it still is. In fact, I'll bet U = 0 = V is true; you're just sitting there.



But are there forces acting on your butt? Must be something because you're not floating around the room. You're fast secure to your chair. You have your weight, the force of gravity pulling you down into your chair, so you don't go off to the ceiling. But (or is it butt) why don't you sink through the floor with all that weight pulling you downward?



Oh, yeah, there must be another force, a reaction force, from the chair pushing back up against your butt. You know, for every action there is an equal but opposite reaction.



So the sum of that force and your weight is zero. And that's why you are neither floating nor sinking, there is no net force on you even though two forces, gravity and reaction, are interacting with your butt.



So your butt has a constant, zero, speed even though there are two forces it is interacting with.What are some examples of having no interactions affecting motion ?Well from newton's laws, any object that is in motion will remain in motion unless acted upon. So it would have to be a constant velocity, and would have to be in space infinitely far away from anything with mass. In other words, your question is realistically impossible.

Conceptually, you may have a mass with a certain V in a frictionless/windless/gravity-less world. It's motion would then be unaffected.