Q

This achievement requires you to have unlocked the level set PRIMARY 3. You can unlock PRIMARY 3 by first completing a set amount of levels in PRIMARY 2 (If anyone knows the exact amount, please let me know in the comments).

For this achievement you need to complete Q.46 with just 1 drawing. To do this, create a large weight directly above the middle of the ring. Make sure to draw the weight hovering above the ring so that when it drops it will hit the ring hard. The ring should roll to the side, and the pink ball inside should come out.