Friction and gravity make moving things a bit tricky.

Gravity pulls everything down, which changes how heavy objects feel and how fast they speed up.

Friction, on the other hand, tries to stop things from moving. It creates a push against motion, and how strong this push is can change depending on the type of surface an object is on.

These two forces can cause some problems:

1. Unpredictable Behavior: Objects can act differently when they’re on different surfaces.
2. Energy Loss: Friction can waste energy and slow things down.

To tackle these challenges, here are some tips:

• Try Out Different Materials: Experiment with various surfaces to see how friction affects movement.
• Do Some Simple Calculations: Use formulas like ( F = ma ) (which means force equals mass times acceleration) or ( f = \mu N ) (where friction equals a number times the normal force) to help you predict how things will move.