Question

. In the following situations write whether friction will increase, decrease or not change.
1. A meteor enters the Earth's atmosphere from space.
2. Powder is sprinkled on carrom board.
3. Area of contact between two objects increases.
4. Roughness of one of the two surfaces in contact increases.
5. A person tries to walk on marbles.​

Answer 1

Answer:

1) increase

2) decrease

3) no change

4) increase

5) decrease