1. I would like to learn more about real-world problems, and free-body diagrams and try to learn about engines.

[Thakyas]

1. I would like to learn more about real-world problems, and free-body diagrams and try to learn about engines.
2. My favorite activity is cleaning the snow.
3. $F=ma$ Newton's second law of motion, is one of my favorite equations. The net force is equal to mass times acceleration, this equation plays an important role in terms of human civilization, we can see examples of this equation from rockets to a door.
4. $d/dx (e^x) $ is one of the best equations, it is like a final villain that cannot be defeated.

Originally posted by @Thakyas in #4 (comment)