Explanation:

If an apple is released from an orbiting spaceship, it will move along with the spaceship at the same speed
An orbiting vehicle has sufficient speed to remain in orbit. If an apple is put outside the vehicle, it will continue in orbit with that vehicle. It will just float there. The apple and everything in the space vehicle will be moving at the same speed, and, because the vehicle is in orbit, everything will have sufficient speed to remain in orbit.