Inertia decreased. Gravity increased. Friction increased. Magnetism decreased.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Otto pushed a toy car across a floor. The car traveled fast across the wood, but it slowed to a stop on the carpet. Which best explains what happened when the car reached the carpet?
Possibilities:
- Inertia decreased.
- Gravity increased.
- Friction increased.
- Magnetism decreased.

Friction increased.