Sorry to restart an old post but having gone over it, I am still unsure about the answers to question 5.
The current situation I see is that point C is wrong as Comet's are by definition not stationary.
All other answers are guesswork as there is no frame of reference to differentiate them.
Free motion only defines a constant velocity not a direction or a measurable velocity.
The current situation I see is that point C is wrong as Comet's are by definition not stationary.
All other answers are guesswork as there is no frame of reference to differentiate them.
Free motion only defines a constant velocity not a direction or a measurable velocity.