This trophy is 25% skill and 75% luck. You simply need to get the nine-ball into one of the holes on the first hit (when everything is lined up like a diamond on the centre of the table). Pick "play alone" and move the white cue ball as far left or right as you can. Then aim in the centre of the front two balls and pull all the way back for maximum power. Keep trying that until you get lucky. Another method is simply shooting straight ahead when the game starts without adjusting anything. The physics are not predictable and they can do completely different things every time so you just have to keep trying.