Originally Posted by **helpmeimdying** Hi everyone, I have NO CLUE how to even start this problem! Please help!
If a 1100kg artillery shell is fired from a 100,000kg battleship with an acceleration of 2000m/s^2, then what is the recoil acceleration of the ship? |

Newton's third. If the artillery shell has a force acting on it by the ship the ship has a force acting on it by the artillery shell. These forces are equal.

1) What's the force on the artillery shell?

2) What's the force on the ship?

3) Thus, what is the acceleration of the ship?

-Dan