A spaceship drifts sideways in outer space from point P to point Q as shown in the figure. The spaceship is subject to no outside forces. Starting at position Q, the spaceship's engine is turned on and produces a constant thrust (force on the spaceship) at right angles to the line PQ. The constant thrust is maintained until the spaceship reaches another point R in space. At point R the engine is turned off and the thrust immediately drops to zero. Which of the paths 1-5 will the spaceship follow beyond point R? P Ro - - 1 - - -> R 6 R R R . O Path 1 O Path 2 O Path 3 O Path 4 O Path 5