/sci/ - Science & Math

Say you are floating along through space in a closed box with no windows, moving towards a large mass, and you execute a trajectory like the one in the pic. Would you be able to tell you are accellerating from inside the box? My gut says you have to be able to tell you are accellerating, but when I picture this scenario, I feel like you would just feel like you were in freefall the whole time.