A sliding box slows down because friction always acts in the direction:

Question

Accepted Answer

B. Opposite motion

1. Friction resists whatever movement is happening.
2. It points back against the sliding.
3. So it acts opposite to the motion.
_Source: syllabus Science Class VIII, Chapter 8, Force and Pressure._

Answer

Opposite surface

Answer

Opposite gravity

Answer

Opposite weight

A sliding box slows down because friction always acts in the direction:

Keep practising Force and Pressure