1. The problem statement, all variables and given/known data A spaceship is travels in a straight line (to the left) past a space station that is at rest. the spaceship is speeding up relative to the space station. inside the ship, there is a block attached to the end of a light spring. the spring is extended by a fixed amount, as indicated by the spring scale mounted at its center. picture of block/spring: |----scale---- block wall <----------- ship moving in this direction An observer is standing at rest on the space station. what is the direction of acceleration of the block in the observer;s reference frame? 2. Relevant equations 3. The attempt at a solution At first i thought that maybe the acceleration would be to the left since the spring would appear contracted but then I wasnt sure because it says that the ships velocity is increasing relative to the observer so then I thought maybe it would be to the right?? Im clueless. Any hint would be much appreciated.