Yes it can be seen from space. If you go on NASA'S website you can get a bunch of info on how it looks from space
Answer:
No net force means the truck reamains at rest or the motion of the truck does not change.
Explanation:
Getting someone to help you push your car out of a snowdrift. You both get on the same end of it and push in the same direction. Another beautiful example is a Tug-o-War, where you might have 50 people (!) all exerting force on the rope in the same direction.
All objects in orbit must follow the path of an ellipse (one of Keplers laws)
