Two particles of mass 2m and 3m are d meters apart and move toward each other due to the gravitational force on each other. What is the distance of the position where they collide to the starting position of the mass 2m?
I have no idea about how to solve it. I tried Google but found nothing helpful.
I have basic idea on gravitation and stuff. If you can tell me some keywords to search in Google or YouTube, I will look it up myself. If I need to learn a new chapter, please tell me it's name. I will learn it and then try this.
Otherwise I have no idea about how to start. Please help.