ASAP HELP PLS match these
- the force that earth exerts on a group of astronauts gets progressively weaker as their rocket rises up vertically
- at all times the astronauts exert as much force on the earth as the earth exerts on them
- the rocket accelerates upward and the engines' combined thrust overcomes gravity
- astronauts feel as if they are pushed back into their seats during launch

WITH
1. law of universal gravitation
2. newtons 3rd law
3. newtons 2nd law
4. newtons 1st law